From Manga Daisuki:
Araragi Riuichi is a law student. But unlike others, he is very aware of human lives and how people can toy with them. So when he sees that a man is trying to kill a kid, he decides to come in action. But although he believes it's the right thing to do, the police doesn't share his idea, and so Araragi goes off on his own to fulfill his dreams and make a better world. But then in his way... The Araragi Way.