Yōken Udagawa

Youken Udagawa is a former member of the Fallen Angels, who got the title Observer. He has the Number 4 Kings Crest in Takamiyas gang. He is also a member of the solomon company.

Appearance
Udagawa wears a black coat and a black silk hat, which why Furuichi mistaken him to be a magician. He had also long black hair and wears a small mask.

Personality
Udagawa is a smart, calm person, who look at things more in a business way. He seems pretty well informed, so he noticed that Furuichi and Oga are partners since elementary school. Himekawa noticed that Udagawa is by the other Fallen Angels also an outsider because he's not a school thug but member of the solomon company.

Return to Ishiyama High School Arc
His first appearance was in meeting of the head members of the Fallen Angels. He was later seen when Himekawa successfully kidnapped Furuichi. After beaten by Isami Busujima, Furuichi heard a talk between Himekawa and Udagawa, where Furuichi found out that Udagawa was working for the solomon company, who selled Takamiya and the Fallen Angels a demons power. He also heard that Udagawas titel as "Observer" means that he should observe Takamiya and his gang for the company. Furuichi supposed after that, that Udagawa could be the mastermind behind everything, who Hilda noticed. After that Furuichi escaped, which was noticed by Udagawa and Himekawa.