Minsu Kim

* Demon Lord
* Warrior
* Half Armor
* Normal

**Minsu Kim** is the main antagonist of **Hero Has Returned**. He is the *Sword Warrior* who fell into despair upon returning home from another world only to discover that everyone he cared for is either dead or shuns him, causing him to snap and, together with other corrupted Warriors, go on a rampage to make everyone as miserable as him.

After his companions from the other world are transported to Earth and killed before his eyes, he finally reached his breaking point and went completely insane, turning into a Demon Lord determined to destroy the entire world.

## Appearance

### Human

Kim is an average-height man and muscular built teenager with short black hair and red eyes. He wore a grey standard school uniform and black pants with sneakers.

### Sword Warrior

Kim wears a clad white colored full body armor with a white crusader helmet and a red plume attached to it. The armor shoulder part has a diamond shape strap attached to his red cape. He also carried a giant greatsword that could change its size at will.

### Demon King

After becoming a new Demon King, Minsu Kim’s hair turned pure white, and due to his battle against Ivan Pushkin, he lost both of his legs and arms, resulting in him using magic to create artificial prosthetic legs made from light and scripture writings and restructure his Holy Sword Durant into prosthetic arms. The irises of his red eyes were also shown to have changed shape, with a pentagon star having formed in them.

## Personality

### Pre-Fallen Hero

Kim is a young boy that is empathic, deterministic, strong-willed, kind, and helpful. The other world's heroes noted that Minsu was humble and very soft-spoken. Minsu was determined to see the other world's salvation and was very selfless in this regard.

### Post-Fallen Hero

Kim is an extremely depressive, nihilistic, thoughtless, cold-hearted, genocidal, and cynical individual who eventually almost lost all of his humanity.

He lacks the concept of empathy, hope, and life. He doesn't care or show any concern for others, not even himself. It is known that at a point like this, Kim doesn't even fear death due to no longer having anything worth living and protecting, even nearly allowing the Spear Hero to kill him since he didn't see how meaningful his life is once.

Although it is known that Minsu doesn't enjoy killing others, he has to do it because he feels like it's unfair that others can't feel the same way he does, and wants everyone to know the despair of what it truly feels like to lose everything that matters to them.

Despite establishing a faction consisting of heroes that have been through a lot of tragedies like him, he still doesn't trust any of them, viewing the "heroes" of his faction are just like the other people that reject him from society, believing that even they don't understand his sorrow even when they did praise and told him that what he's doing was the right thing.

When Minsu sees his other world comrades die protecting him, Minsu is driven further into despair and concludes that no one will be able to feel the same misery as he. Instead, he decides that everyone alive will die, and casts away what shreds of humanity and heroism he had left, becoming Earth's Demon King.

### Demon King

As a Demon Lord, Minsu Kim’s personality becomes even darker and emptier. Due to seeing his friends and companions from the other world be mercilessly slaughtered by the undead, Glacial Hero, Minsu’s despair, hatred, and contempt for the world reached a new level and he has now become completely nihilistic and omnicidal, now only desiring to completely slaughter the entirety of the human race.

As noted by Hans Joseph Belgisch, Kim’s mind has already gone far past its breaking point and has now reached the level where everything he does is almost completely done out of robotic instinct, this is seen when he barely registered Belgisch’s words and was unable to comprehend what he was trying to say to him, ironically making him immune to the power of his abilities as a Hero of Faith. As stated by Ivan Pushkin, Minsu had essentially become nothing more than a gigantic ball of hostility toward everyone and everything around him.

However, he has shown to have maintained at least a little bit of his sanity, attempting to force Seongjun Lee to go back in time and save his comrades. In addition, he is also still capable of anger, killing Seongjun slowly when he refused to follow his command.

## History

### Background

Minsu is born to an average family and lived a normal life. However, one night while he's walking home after school, he ends up getting hit by a truck.

Summoned to another world upon his death, he was tasked by the Goddess to defeat the demon lord if he wishes to go home. After successfully defeating the demon king and saving the otherworld, he and his party celebrate their victory. Min-Su's comrades, still question whether he still wants to go home, saying that he can stay if he wants, but Min-Su was determined to see his loved ones back in his home world again. His last moments of happiness are when his comrades cheer for him to live a fulfilling life. Which that life never happens.

Upon his return, Minsu discovers that his mother got into a hit-and-run accident upon giving out missing posters, his father committed suicide because of the shame that he couldn't protect his family, and his home has been sold to a new owner. His school refuses to revoke his expulsion and blames him for running away and his parents' deaths. One of his close friends was told by his family to not hang out with Minsu because he was homeless and thus could no longer be his friend. Minsu's paternal relatives, mainly his uncle, beat him and tries to kill him, blaming Minsu for being the cause of his parents' death, and his cousin tells him that his uncle will beat Minsu again if he returns and so he to leave and never come back because their family is also getting bankrupt because of him.

Minsu is left homeless and poor, with no family, no social life, and no degree, with no help given to him from others and all blame placed on him even though he saved a world and countless people and risked his life fighting his Demon Lord to come back home.

Three weeks later, Kim reaches a breaking point and suffers from a mental breakdown when a couple bullies him for his homelessness and miserable appearance, he has now given up on hope and wants everything to taste the despair of what it feels like to lose everything that matters to them. He ends up enslaving Korea and declares war against humanity, along with other heroes who have gone through the same tragedy he has.

To make matters even worse, he also killed all the remaining heroes that stood out to defend humanity, except for the Vampire Hero, who betrayed humanity due to being taken over by his world's Demon Lord.

### Original Timeline

In chapters 61 and 62, it is revealed that in the original timeline, before Seongjun Lee traveled back in time and began altering events, Minsu and Seongjun were two of the warriors who fought against 9-Warriors of that world. After about a year of fighting, they were able to defeat the 9-Warriors. Afterward, Min-Soo began a relationship with Sun-Hwa Yoo, eventually marrying her and having two children together.

Unfortunately, due to Seongjun being sent back in time against his will, this happy ending for Minsu was effectively erased.

## Synopsis

### The Warrior of Revolt's Arrival:

A year later, Kim is seen sitting in an area of the now-destroyed Seoul, he was later notified by Seongjun Lee that two of his allies got killed at the hands of the now-returned Jeongsu Park. He was disgusted that his chain of misery is breaking apart and later called all of his remaining warriors to search for Park before he can even ruin more plans that Kim prepares for the world.

### Reconstruction Government Raid:

After Garam Lee tracked down the location of the Reconstruction Government, Kim and his gang went in for a killing spree that killed a total of 13,000 remaining government officials in 3 minutes, not long after Park spotted Kim. The two engage in battle face-to-face for the first time in a year. When Park throws his poisonous spear, it creates a gas that made Kim bleed from his eyes. However, Kim almost let himself get killed at Park's hand only to realize that Park would get his happy ending not his, the envious Kim soon strikes his sword at Park as the battle of the century had begun.

The two struggle as they both collapse after a minute or so until they show up to be serious when both made their helmet visible to him he cast a blessing from his goddess Seraphine. The two fought once again until Kim cut Park's left arm off saying "Your sorrow is too shallow." Park charged at Kim and eventually punches a hole in his armor and then get a heavy kick by Kim, Kim beat the defeated Park over and over until his face becomes unrecognizable and soon he notices a stray bullet past him and turned to see Somin holding a gun. when Kim was about to kill Somin, he heard an announcement from Jeonguk Choi announcing the remaining survivor to protect Park and the building exploded almost landing on Kim but later saved by Hana's light magic hand.

Later Kim saw the Hero of Magic standing before him defending Somin while raising her wand at him. The magic hero blasted Kim with her Sugar Dust Stream attack critically injuring Kim. After the Hero of Magic made her escape, Kim was seen to be recovering his wound with the help of Hana's healing magic.

### Aftermath of the Reconstruction Government:

After the two heroes who revolt against Kim successfully escape, the other heroes wipe out half of the population such as the government officials and refugees in the reconstruction government base. Kim walked up to the last remaining government official and told the man if he spread fake news about the warrior of revolt officially dead for the whole world to see, he will spare his life; however the man refuse as he mocked and told Kim that Park and the rest of the resistance will kill them, he later gets beheaded by Kim out of anger. Kim told the rest of the squad to launch a search of Park and Yerin to prevent other people to feel hope and their faction's demise before facing the entire world.

When Garam Lee use her ability to make a Hologram screen of the conference being held in the white house they all heard that the government use the latest technology called ***Gods Hammer*** that a nuke was launched at their location and no one can fend it off, Lee was devastated and failed to hack it earlier.

However, the Iron Arms Hero told them that there was nothing to worry about because they have a great "Reset Button" on their side. After settling in waiting for the nuke to arrive for Lee to reset and informed them about the Gods Hammer, Lee has a final little chat with Kim and lets him know that they will lose their memories upon his reset but in the other conversation, he also revealed that he was the one who killed his beloved parents. Kim was enraged to hear this information but it was too late, the nuke already disintegrated Lee from the heat and eventually blew up half of Korea.

### Old Generation

After Garam Lee hacked into the satellite weapons systems, the warriors of Minsu Kim's faction began their destruction in various areas of the world, with Minsu Kim invading North Korea.

Despite all the North Koreans' military equipment, nothing was able to even put a dent in Minsu Kim's body and armor, as he had been using the Blessing of Goddess Seraphim to protect himself from any projectiles that were coming his way. Without much effort, he began to lay waste to the cities in North Korea while he just kept on walking and walking until the Glaciation Warrior, Ivan Pushkin blocked his way.

Before they fought, Ivan asked Minsu Kim why he was causing so much destruction, to which he replied saying that he didn't know at all anymore, despite knowing for himself that he wanted everyone to be in just as much anguish as he was in, before swinging Durankal at Ivan. Ivan countered by saying that there is no obvious reason why people like Minsu Kim did what he did before summoning a large ice turtle to block the attack.

Ivan showed his skills, he easily blocked the slashes of Minsu Kim's sword, which was impossible for anyone to do. He has the strongest fighting power, such as freezing his ankles and punishing his face so that his face becomes bloody, while he freezes Minsu's body with force to prevent him from getting frostbite. Using his long experience of living and fighting on the battlefield for more than 100 years, he showed a versatile and skillful use of his abilities. However, Minsu managed to counterattack and swing his sword, showing a scene where his neck was cut off.

However, he hides and controls an ice clone that he created to catch Kim off-guard. In a surprise attack, he stabs Kim Minsu's heart, predicts that Kim Minsu will counterattack, and blocks them all with his summons. The method of freezing from the inside neutralized the protection of the goddess Minsu Kim and drove him to the point of death within 30 seconds, demonstrating the overwhelming difference in experience and magnificence of working as a hero. In addition, to eliminate one more chance of winning Minsu, he summons the Nazi army that he defeated with ice, Siegfried, the warrior of the squadron sword, and Jonas, the champion of the squadron golem, to respond.

In the end, Minsu Kim is pushed into a corner with a limit in front of the overwhelming amount, and one arm is completely shattered. Nevertheless, when he resists fiercely with a sword in his mouth, he surprises him with a technique called Absolute Zero Temperature and freezes it completely. He leaned on Kim Min-soo, who was frozen, and said that he was sorry and that this is all he could do for now.

Ironically, at this time, all of Minsu Kim's comrades from another world are summoned in front of Kim Min-soo. When Ivan realizes this, he tries to tell them that Minsu Kim is the villain in this scenario, but given how Ivan had used his glaciation powers on the environment around them, Minsu Kim's comrades believe that it was Ivan himself who was the demon king.

Minsu Kim's comrades all fight against Ivan. However, Ivan is unable to fight to his full potential because of the injuries he got from fighting Minsu Kim after pushing himself to the brink despite his age. After he is struck by a fatal blow by Jin, he lies on the brink of death. However, as he lay on the ground, the snow witch from the world he once transferred to arrived and made a deal with him, that if he gives her something, she would grant any wish Ivan wanted in return. When Ivan wishes for the power to be able to keep peace in the world, in return, the snow witch takes Ivan's 'epic.' This turns Ivan into an undead glaciation king.

With his newfound power, Ivan summons a massive undead army and the dragon and kills all of Minsu Kim's comrades, one by one with various methods when they tried to buy time to help break Minsu Kim out of the frozen ice seal Ivan had put upon him.

As Minsu Kim mourns the deaths of his comrades, Ivan tries to finish him off once and for all using his undead warriors. However, Minsu's despair turns him into a Demon King. Shocked that he was the cause of this, Ivan tries to kill Minsu Kim. However, just as he was beheading his enemy, Minsu Kim effortlessly kills Ivan. With the last of Ivan's strength, he created a snowstorm to stall Minsu as long as it could to buy some time for his remaining allies. Minsu continues his march as he makes his way to China. In about 12 seconds, Minsu killed 200,000 soldiers as he walks forward. As a surviving officer reports and curses the Russian military for their failed attempt to kill Minsu, Minsu appears before him and kills the officer.

He continues his walk of despair and spreading destruction as Minsu made his way to Russia. No matter how much modern weapons the Russian military used against him, they were completely annihilated.

## Abilities & Powers

Minsu Kim is by far the strongest Warrior, stemming from the general rule that each Warrior is usually slightly stronger than their respective Demon Lord, with the one he fought being especially powerful. It is a testament to his strength that every timeline where he was part of the Resistance Warriors ended in their victory, no matter how many times Seongjun Lee reset. After becoming a Demon Lord, his powers were further boosted, to the point that it is now believed that he could truly single-handedly end the world.

**Immense Strength:** It can either be that he trained through most of his journey in the other world, or it can either be a boost by a goddess blessing, Kim breaks Park Demon lord armor with just a single punch and even send him flying by a single kick.

**Immense Durability:** As shown, Minsu’s body by default possess immense physical durability. This is seen where he could shrug of bullets and rocket launchers without problem and without needing to actually defend himself. During his rampage to Russia, Minsu was able to completely tank the various attempt to destroy him by government’s army, including using various modern weapons, gigantic bombs and even nuclear bombs, with Minsu being completely uninjured and unbothered by them as he calmly walked from one country to another.

**Immense Speed & Reflexes:** Minsu has also displayed immense speed and physical reflexes, allowing him to easily outmaneuver and overpower other heroes by quickly closing the gap between them in seconds. As shown, despite his Sword’s large size, Minsu is able to easily swing it around and move with immense speed uninhibited.

**Sword of Durant:** His main ability as the sword hero, a massive sword, representing a great sword capable of causing mass destruction. Kim Min-Soo can summon it by calling out to the Sword of Durant by saying 'Answer my call, Sword of Durant', which, in response to this, will fall from the sky, right next to Kim Min-Soo. The capabilities of the sword are yet to be discovered, but from what is shown in the Manhwa up until now, it is capable of creating massive shockwaves, and Kim Min-Soo can also infuse it with multiple elements to increase the amount of damage he deals on impact.

**Eclipse Mode:** Kim change his weapon when he called out, The eclipse mode of the Sword of Durant is a larger version of the sword, and additional sheathe of white blades around the normal black and gold sword core, that creates mass destruction with just a single strike or even at a long distance. Currently, the sword of Durant is shown to look like a massive Greatsword when it's in Eclipse Mode that can either block the enemy Attack or even deflect it.

**Daybreaker Mode:** Kim change his weapon when he called out, The Daybreaker mode of the sword of Durant is a smaller version of the sword, the normal black and gold core of the sword, that creates a swift in a singular horizontal/ Vertical motion of slashes and can even use as a long-range attack as well. The sword of Durant is shown to look like a smaller, but still large Greatsword when it's in Daybreaker mode that can cut anything in its path.

**Unknown mode Split:** The sword has also been shown to be able to split in half. They turn into a sword with one edge and on the other side is a flat side, allow with massive round and heavily spiked knuckle bows. The sword edge consists of constant erratically-moving, sharp lights when wielded, somewhat reminiscent of a one-sided chainsaw. This light only appears if Kim is actually holding the blades, and in periods of intense usage can seemingly almost solidify into a straight smooth edge of light. Kim can make his helmet appear and disappear whenever he's in combat mode against a strong opponent.

* **Prosthetic Arms:** After becoming the Earth’s Demon King and having his limbs torn out by Ivan Pushkin’s the undead army, Minsu Kim was able to restructure and craft his dual split swords of the Holy Sword Durant into prosthetic arms. As shown, due to his swords now literally being his new arms, he no longer needs to use its sword form to attack, instead being able to simply point and flick his fingers at his intended targets to use his new skills to reduce and slice his targets into mince meat.

**Magic:** Despite not making much use of it, it has been implied that Minsu had also been taught the magic of the Sword World he was summoned to. After he lost his legs to Ivan Pushkin’s undead army, Minsu was able to conjure magical prosthetic legs created from light and scripture writings.

**Blessing Of Goddess Seraphine**: Kim summons a Goddess that can either give him any buff boost, heal him from certain damage, or protect him from any incoming attack. However, Kim notes that the Goddess' Blessing is useless against things that are within his body, such as the lethal frostbite spreading through his limbs and to his heart caused by Ivan Pushkin, the Glaciation Hero.

* Description
* Post-Demon Lord
* Demonstration-Sword Hero
* Demonstration-Demon Lord

* Sword of Durant Eclipse Mode: Vortex Slash - Kim Create a Powerful swing creating a rising large vortex that demolishes the surrounding area.

* Sword Of Durant Eclipse Mode: Slash - Kim unleashed a powerful horizontal sword slash at his opponent.

* Sword of Durant Daybreaker Mode: Slash - Kim Unleashed a Powerful Vertical sword Slash at Park.

* Sword of Durant, Split: Dual wielding the two halves of Durant, Kim slices everything in all directions at the opponent's incoming attack.

* Laser Manipulation - Upon his ascension to a Demon Lord. Min-Su achieves a far more advanced version of his Hero abilities. One of these skills allows him to create a line of lasers from his fingertip that slices his targets into cube-like bits and soon disintegrates into nothingness. The effects of this laser ability appear to also extend to a level where he can activate it upon staring at the target he wishes to kill showing that the ability can even work via his field of view.

* Unnamed Protection Cape - Min-Su's cape is empowered with an unknown protection spell that allows him to wrap it all around his entire body. The cape is powerful enough to shield him from a nuclear explosion that bombarded and burned a piece of a continent.

* Aura Sensing - he is shown to be capable of seeing the aura of nearby heroes or superpowered beings.

* Unnamed Observation Eyes - the red star-like eyes that he possesses serve as an ability that allows him to view locations that he wishes.

## Trivia

* Minsu Kim is presented as a **false protagonist** during the series' first chapter, making it appear as if he would be the main character while this is not the case.
* According to the author, Minsu Kim's character is based on a protagonist of an "Isekai" story, where the main character is transported to another world.
* According to the author in a Q&A in the Season 1 Afterword, it is uncertain but possible that Minsu Kim possesses the characteristic of a Demon Lord that would continue to unleash power and destroy the different Otherworlds if he somehow found a way there or was moved there, in which case it would be very likely that he would continue to destroy.
* In another Q&A conducted by Yongdol Gallery, it is stated that it is hard to say whether a Hero who has fallen and uses the power of a Demon Lord is stronger than a Hero who awakens the power of a God, as both are quite powerful. However, a Hero that uses the power of both a God/Hero and a Demon Lord would be really strong.
	+ In that same Q&A, it is stated that, prior being a corrupted Hero, Minsu-Kim is strong when he has something to protect, and by being capable of making rational decisions, he can evolve depending on his opponent until he gains the upper hand in interpersonal battles like a snowball.
	+ In the same Q&A, it is explained that even if the latest generation of Glaciation Hero had survived, defeated their Demon Lord and return to Earth, they still would not be able to defeat Minsu-Kim, and that Minsu-Kim specs were the highest of the Heroes.
* The previous Sword Hero **Siegfried**, sided with the Nazi Party during WWII and was killed by the Glaciation Hero, Ivan Pushkin. As seen during his final moments, Siegfried was Implied to have had the desire to take over the world and was disappointed that his fellow Hero did not share the same ambition.