Murata is a member of the Demon Slayer Corps.

Shita Oni was a Demon that lived in the Drum House.

Suiryu is a Martial Artist and user of the Void Fist. He is said to be a top contender in the Super Fight tournament. Suiryu is an easygoing and carefree man usually seen smiling and is a notorious playboy, who would rather spend time with women than training. He is also very eager to fight strong opponents and believes the reason for fighting is to live an easy life without worry. During fights, Suiryu holds back in an effort to make any fight more interesting, only using his legs during his fights and later defeating his opponents with one kick. While fighting he tries to make small talk and after he defeats his opponents, he sarcastically apologizes to them for being too strong. Suiryu is a martial arts prodigy. Despite having spent most of his time goofing off or not taking his lessons seriously, he still ultimately became one of the most revered martial artists in the world, considered a legend for winning four Super Fight tournaments in a row.

When he first appeared Koby was a small, timid, bespectacled boy with pink hair. He was slightly chubby and somewhat shorter than Luffy. After training with Garp, Koby became somewhat thinner and taller. He now stands nearly as tall as Luffy. He also gained a scar across his forehead above his right eye. He now wears a jacket with the standard Marine colors.   Personality  Koby is first introduced as a cowardly Chore Boy on board Alvida's ship. Through fear of being smashed by her Iron Mace, whenever she asked him who was the loveliest on the sea, he would reply, 'You are, Miss Alvida'. Eventually with the help of Luffy he found the courage to pursue his dream of leaving her and becoming a Marine.  The first time he appears to have changed is when he and Luffy arrive at the base Captain Morgan is at. Helmeppo holds a gun to his head, but he pulls together his courage and tells Luffy not to worry about him. After their mini-arc series, Helmeppo and he become good friends.  Koby values his friendship with Luffy a lot, as shown when even after their brief fight, he asks if they're still friends.  Abilities and Powers  In his first appearance he lacked any fighting skills. According to Alvida, the only reason why she kept him on was because he happened to be good at Navigation. He is seen during his mini-arc training alongside Helemeppo and Vice-Admiral Monkey D. Garp. He has since become strong enough to use Rokushiki, or at the very least, Soru. He also has some knowledge of swordsmanship, as he was seen practicing with Helmepppo, as well as Garp's attendant.    ~! Current Events  He appears to be at Water 7 alongside Helmeppo after Garp pays Luffy a visit. He tells both Luffy and Zoro about "The New World", and also tells them that the next time they met, it will be in the New World, and that he will be an Admiral and he will have to fight and capture Luffy. Luffy just says he'll look forward to their fight.  Koby sees Luffy one more time as he leaves Water 7, when Garp attacks.   Koby makes another appearance later on, in the Marineford Arc, participating in the war alongside the marines. After shouting a plea to end the war, he is attacked by Admiral Akainu, only to faint before being saved by Shanks. Sometime during the timeskip, he was hailed as the hero of the rocky port incident, where he protected civilians from a former member of the Rocks Pirates. He has also been shown to be a member of the marine organization SWORD. He is currently in captivity on pirate island in the New World. !~

Lay Glanzudlii is a member of the Generation of Chaos, commonly known as "The Demon Sword Saint" and a transfer student at Demon King Academy. 

~!He is the reincarnation of the Hero Kanon.!~

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Qingyang Li

Characters