Kuki

Kuki (空気 Kuki) is an Upper Rank Demon.

## Appearance

Kuki is a tall demon with two cracks going down his face starting from his forehead and going through his eyes

Kuki has a more modern appearance with an open green hoodie, red baggy pants with no shoes. Under it, he has a vertical blue Mobius strip design on his chest and grey skin. His hoodie has white arrows at the end of the arm sleeves and the pants have a diamond design on them. He has white skin.

## Personality

Kuki is generally a non-serious guy like Douma but when he sees a real threat he gets serious. He likes helping other demons kill demon slayers, as a result of that he is the most liked Upper Moon Demon. He compliments any strong techniques done by demon slayers, like Akaza and plays with most of his foes before killing them.

Kuki turned into a demon because he believed he could gets stronger, faster, better than the people who continually boasted on him, beat him up and bullied him until his life was a living hell. He hates the demon slayer Akira Gushiken as he reminds him of his bullies.

He thinks of Daki as a hoe, Gyutaro as someone who was too confident, his predecessor Gyokko as weak, Hantengu as someone who was the opposite as Gyutaro, Akaza as his idol, Douma as his friend, Kokushibo as an obstacle and Muzan as his teacher so he has the utmost respect for him.

## Abilities

**Overall Abilities:** As the holder of the fifth highest position in the Twelve Kizuki, Kuki is an extremely powerful demon, having been able to defeat multiple Hashira as well as an endless amount of demon slayers.

**Advanced Perception:** Kuki has learnt to sense people looking at him with a motive to harm like Inosuke by feeling minute changes and vibrations in the air. He also has an amazing sense of smell to help him smell blood, good hearing which has been trained to hear even the slightest whisper, sight to see up to a kilometre away and touch to as said before sense changes in the air.

**Immense Durability:** Kuki has incredile durability because of him training his body to its peak. Normal nichirin blades chip or even break in half when someone tries to behead him; only a Hashira even has a chance of taking him down. In the flashbacks shown, every time that he fought a Hashira, they only got through half of his neck before he regenerated and killed them.

**Immense Regeneration:** Kuki has amazing regeneration as an upper moon demon which is expected due to the fact that he has a very high concentration of Muzan's blood. He has shows the ability to regrow body parts that have been sliced off and also can regenerate his clothes. His regeneration is almost instant.

**Immense Speed and Reflexes:** Kuki is very fast, as shown when he seemingly teleports to places when he is really running very fast. He could easily dodge all of the Hashira when he accompanied Muzan to the Demon Slayer Corps Building. He could outpace Shinobu's techniques with ease and dodge Gyomei's attacks. He could also blitz Akira Gushiken, who's breathing form was made for speed.

**Immense Strength:** Kuki possesses immense strength which has been showcased multiple times, like when he sent all the Hashira back flying without needing to use any of his techniques. Each one of his punches or kicks are enough to shatter bones without even trying. he easily broke Giyu's blade when he was fighting with Akaza against Tanjiro and Giyu and also helped Akaza injure Giyu and Tanjiro.

## Fighting Style

### Blood Demon Art

Kuki's Blood Demon Art is focused around generating attacks so hard that they send an air wave. Ever since becoming a demon, Kuki has been working on his Blood Demon Art so that he can fully manipulate air to an extent that he can manipulate its properties and create it. His attacks are mainly transparent and sometimes have a white shine around them.

#### Techniques

* **Hand Type: Air Punches** (ハンドタイプ: エアパンチ *Hando Taipu: Eapanchi*) - Kuki shoots airwaves from punching.
* **Hand Type: Blow** (ハンドタイプ：ブロー *Hando Taipu: Buro*) - Kuki slams his hands together and shoots strong wind generated from the force of the clap.
* **Hand Type: Boosted Fists** (ハンドタイプ：強化拳 *Hando Taipu: Kyoka Ken*) - Kuki uses air to boost punches at the elbow, making them faster and more powerful. He generally starts his battles with this technique as it boosts his punching speed and strength and boosts the power of **Hand Type: Air Punches**.
* **Hand Type: X-Slice** (手のタイプ: X スライス *Hando Taipu: X-Suraisu*) - Kuki puts his hands in an x form and shoots a sharp air slash from it. This is mainly used for defence and holding off attacks as it provides limited attacks getting through and launches a counterattack straight after.
* **Leg Type: Spinning Tornado** (レッグタイプ：スピニングトルネード *Reggu Taipu: Supining Torunedo*) - Kuki starts spinning on his head while kicking to make a tornado. This is mainly comboed from using **Hand Type: Boosted Fists** when a right hook is done. The right hook keeps going to transition into this attack.
* **Leg Type: Teleport Blitz** (レッグタイプ：テレポートブリッツ *Reggu Taipu: Terepotoburittsu*) - Kuki teleports through air to kick the foe several times in quick succession and hits them in their head, left side of their chest and their pelvis - the three vital body parts that take the most damage when hit. This can hit multiple enemies at a time as it covers a wide range and each kick is powerful enough to crush the whole side of demon slayer's ribs.
* **Leg Type: Aerial Axe** (レッグタイプ：空中斧 *Reggu Taipu: Kuchu Ono*) - Kuki jumps up and uses air to push himself down and do a powerful axe kick.
* **Leg Type: Pulse Strike** (レッグタイプ：パルスストライク *Reggu Taipu: Parususutoraiku*) - Kuki does a flying kick that is nearly impossible to see and creates a shockwave after the attack connects. Kuki teleports tiny distances through the air to make it that one bit faster and build up power.
* **Freeze Breath** (呼吸を凍らせる *Kokyu o koraseru*) - Kuki exhales frigid cold air that freezes the enemy.
* **Air Removal** (空気抜き *Kuki Nuki*) - Kuki removes air from a certain area within 10 metres and can do it up to 10 seconds, although if this technique is trained more, it can increase its time and range.
* **Wind Explosion** (風の爆発 *Kaze no Bakuhatsu*) - Kuki explodes the air around himself, burning, choking and blasting away the enemy at the same time.
* **Final Type: Superstorm** (最終的なタイプ: スーパーストーム *Saishu-tekina taipu: Supasutomu*) - Kuki makes a tornado so big that it can cover land up to the size of a country. Kuki can only use this once he absorbs all the air within a 5 metre radius and is almost always used as a last resort and final attack as it takes a while to charge up, around 2 minutes and destroys more than everything in sight.

## Quotes

* (To himself) "Always add yet to the end of a sentence. I can't surpass Akaza-senpai *yet*. I can't get more powerful *yet*. I am not good enough *yet*. This will make it seem possible. Come on, Kuki!"
* (To Akira Gushiken) "Be yourself. Everyone else is taken. Stop trying to copy your friends. This is the only reason I am keeping you alive, Akira."
* (To all of the Hashira) "Give up. Die in the name of Muzan-sama. Or become demons. You can keep training for hundreds of years. As a human you can't regenerate anything. Even the demon slayer mark, your only way to get stronger will kill you. It would be a shame to lose all of your skill dying old, dying weak, dying in regret. Become a demon or die in regret. The worst feeling."