Nisu Akuma

**Nisu Akuma** is the main protagonist of A Demon's Heart. He is the son of Otosan Akuma and Hitokori Akuma, and by extension, one of the two princes of the Underlands.

## Nisu Akuma

### Relatives

Yujin Akuma, Otosan Akuma, Hitokori Akuma, Kanari Akuma

## Physical description

### Appearance

Nisu is an average-built red-skinned demon with large horns, His eyes have no pupils. He also has bat-like wings, with smaller horns at the tips of them. He has a thin tail with an arrow point at the end.

In Book 1, he wore a orange and yellow-orange shirt with green shorts. Later in the book, he changes to a black shirt.

In Book 2, he wore a black shirt and green shorts, carried over from the previous book. Later in the book, he changes into a purple shirt with an emoji on it.

In Book 3, he a wore a purple shirt with an emoji on it, carried over from the previous book.

### Personality

Nisu is a very noble demon, always believing in what's right, even if that crosses some people. He is also very headstrong. But, he tends to run away from his own problems, instead of dealing with them upfront.

He is also against violence against the innocent, while also defending himself and protecting others if need be. He is quite protective of those he cares about, shown by how quick he was to defend Blake from Roketa's attack.

Nisu also is bored by rules and repetition, and goes on his own agenda if he is left to himself.

### History

#### Book One

Nisu wakes up in his bed, starting the story. He goes into the royal dining room, with Yujin and Otosan already there, claiming he’s late.

Annoyed with Yujin, he eats breakfast.

Bored of the castle, Nisu jumps out of a tower window and flies around the Underlands. He notices some crystal collectors in a cave, and flies by Demon Mountain. Returning to the castle, he is quickly caught by Otosan.

Otosan doesn’t chastise his son however, and asks if he would like to see more of the world. Nisu agrees and Otosan says he’ll do something about it.

Later on, Nisu and Yujin become soulcatchers. Otosan takes the princes to Demon Mountain and introduces them to the Soul General, Gunso.

Then, Nisu is introduced to Jokku, a large and intimidating muscular demon who turns out to be friendly. The soulcatchers use time travel to go to earth and find some humans. Nisu is shocked to learn that removing their souls practically kills them.

Returning home to the castle, Nisu storms off, leaving his brother and father in confusion.

That night in the demon world, Nisu has a nightmare stemming from the guilt he feels about taking human souls. Then, during soulcatching, he purposely dosent collect any.

This upsets Gunso, claiming “the son of the king would never disappoint me like this.”

Otosan confronts Nisu, and asks him why he didn’t collect any souls. He tells him he thinks it’s wrong, and that humans deserve to live like they do. Otosan disagrees, and the two argue until the king unleashes a sonic yell from his mouth, destroying the dinner.

Nisu storms off again, fed up, ready to make a drastic decision.

That night, Nisu sneaks out of the castle and goes to Demon Mountain, planning to leave the Underlands forever.

Yujin catches him however, and the two fight. Yujin breaks down, blaming himself for Nisu wanting to leave. Nisu corrects him, saying he was never the reason, and it’s mostly their father.

Suddenly, Otosan arrives.

Nisu reveals his plan to leave for good, and Otosan attacks him. Otosan almost defeats him, but Nisu fights back with a blast of fire and successfully escapes through a time travel portal.

After arriving on earth, Nisu gets hit by an airplane and is quickly knocked out cold. Luckily, he lands near Blake’s house, who sees him falling like a comet.

Blake goes outside and brings Nisu into the house, cleaning him up and offering him a rag. The two immediately introduce themselves to each other.

#### Book Two

**Warning: SPOILERS!**

A short time after the events of book one, Blake is making Nisu empanadas in the kitchen. Their snack is cut short by Erica coming downstairs, completely drunk. Blake manages to distract her from finding Nisu and convinces her to go back upstairs.

Blake offers to hide Nisu in the house if he dosent have anywhere else to go, to which he accepts.

Nisu begins to worry about Yujin back home, and Yujin is grieving his brothers absence, another family member of his lost.

Back in the human world, Blake is walking through the school halls and gets pushed in the halls by Max. Nisu sees this, and wishes to cause harm to Max.

After school, Blake leaves and is greeted by Nisu. The two walk home together.

Returning home, Blake asks Nisu what his dimension was like.

Nisu tells Blake everything, and he even talks about his mother. He tells Blake that she was found dead in a human’s home, presumably killed by them. Blake empathizes with Nisu, and the two connect, their friendship even stronger now.

That night in the human world, Blake goes to a convience store, and takes Nisu with him.

The killer Otosan sent to kill Nisu quickly tracks them down and follows them.

Inside the store, she reveals herself as Roketa, saying she is a “purifier” meant to cleanse timelines of demons. Nisu runs away with Blake in his arms, protecting him.

Roketa manages to shoot Nisu down in the forest and the two fight. She manages to get the upper hand in the battle, striking Nisu with her sword. However, Blake throws a rock at her, distracting her and giving Nisu an opening.

Seeing Blake in danger activates his heart, making it glow a bright pink, and making his horns grow.

Nisu attacks Roketa again, defeating her.

Roketa isn’t finished however, and swears to return and kill Nisu. Saddened by finding out his father wants him dead, Nisu cries and empathizes with Blake, asking if his pain feels the same way.

The two return home, only to find Erica and John waiting for them, catching them and exposing Nisu.

### Abilities and Powers

**Pyrokinesis:** Nisu can create fire from his hands and use it to attack opponents.

**Flight:** Nisu can expand his wings and fly, making a hasty escape.

**Levitation:** Nisu can also move objects with a pink energy, almost like telekinesis.

**Heart Energy:** Whenever his heart is powered up, Nisu can channel energy from his heart and use it to attack. This is his most powerful attack thus far, surpassing all his other abilities.

**Fast Healing:** Nisu recovers from injuries quite quickly, and he states this is natural for all demons.

### Relationships

#### Blake Ezerton

Blake is Nisu's love interest, and best friend.

The two of them share a mutual bond, relating to each other's similar traumas, and are openly empathetic and ready to lend an ear to each other. Nisu is also quite protective over him, unwilling to let any harm come his way. Whenever Blake is in danger, Nisu's heart activates, likely out of the love he feels for him.

#### Yujin Akuma

Yujin is Nisu's brother, so the two seem to have an odd sibling rivalry. Later in book one, Yujin is revealed to have a high amount of respect and love for him, even grieving his absence. Nisu even thinks that he should have taken him with him.

#### Otosan Akuma

Nisu has an tense relationship with his father. He doesn't listen to his rules, due to his rebellious nature. He still tries to love his father, even though living in the demon world makes him unhappy.

As book one progresses, a wedge begins to form between them, due to their differing opinions on human life. This comes to it's peak in chapter 5 as Otosan yells at him and compares him to his mother.

Chapter 6 worsens this, as Otosan attacks Nisu. Nisu declares that he doesn't care about his kingdom, before attacking him with fire.

In Book 2, Nisu is saddended by finding out his father wants him dead, showing that he might still have love for his father, even if he's evil.

#### Jokku

Jokku is Nisu's friend. Even though the two didnt interact much, Jokku treats him like a brother.

Nisu also asks Jokku for advice about what he should do about his feelings of guilt towards soul catching, showing he does trust him and see him as a friend.

#### Erica Ezerton

Erica and Nisu dont interact much, but Nisu does like her.

#### Max

Nisu immediately dislikes Max, seeing him bully Blake.