When Satan comes to take Rin home to Gehenna, Rin has to think of some way to save himself and Shiro all on his own. Out of impulse, he makes a deal with Satan-after hearing Satan complaining about how he can't exist in Assiah because he destroys everything he touches, Rin suggests having a small piece of himself in Rin all the time-specifically, his head. Satan agrees as long as Rin doesn't give them away and no one is any the wiser as he starts as a student and Exorcist-in-Training at True Cross Academy.
5 parts