Hatsukoi

When two young men meet by chance the world will never be the same. For Shin, he believes the world would be better off without him. He, a half demon that can not survive without eating humans. So at the very moment he is about to throw himself to his death he is saved by a stranger. Toji, a rogue courier for the criminal underworld saves the strange handsome man and makes him promise to give his life one week to see if it is worth living. Over the course of that week the two learn they have orbited each other without being aware of the other for some time. Meeting by chance and exposing the other to how they live changes them. And draws them closer to each other. Watching from the shadows of their lives are evils the world has forgotten waiting to be released. As their lust turns to love, the creatures well crafted plans begin to activate ripping apart the lives they had and leaving them in a very different world then the one they took for granted.