Angel Densetsu is a story about Seiichirou Kitano, a kind and naive boy with the heart of an angel, but the sinister looks of a devil. This causes many misunderstandings, leading people to assume that he is a villain or heroin addict, and results in a career as the head thug, or "school guardian" at his new school.
 
(Source: Anime News Network)

Seiichirou Kitano is a naive and kind boy with the heart of an angel and the face of a devil. Upon entering his new school he is presumed to be a villainous heroin addict, and unwittingly becomes the leader of the schools thugs, all thanks to his frightening face. 
His new "friends" have great expectations of him, seeing him as a frightful demon. Kitano himself on the other hand, loathes violence and is blissfully unaware of the situation he is in... Note: Includes 5 extra chapters

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