Kaettekita Rei-kun

Synopsis

With one kick, he saved her life and lost his own to become a ghost. Maybe he should have just been content with himself for his act of heroism, and finally gone onto Nirvana, heaven or whatever you call it. But then something unexpected happens, when the same girl he saved earlier is knocking on deaths door yet again, this time as a suicide attempt?! ....How.... infuriating...