he is the main character of the manga 51 ways to save her.
In the beginning he is just a college senior looking to become apart of a famous tv station. On the way there he see's a former junior high school classmate who is now a gothic lolita, Nanako Okano, who pretends not to know him.
Jin's biggest regret is not protecting Nanako when she was being bullied in junior high school.
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