With the battle with Class Four finally behind them, you would think that things would return to (what passes for) normal for Momiji and the rest of Class One. But as Momiji learns more about his "other half," he's feeling more and more uncomfortable in his own skin. The fact that he's using someone else's heart might have a little something to do with that...Meanwhile, major revelations about Naraka High School and its history are brought to light. Will this give the students an edge in the coming battles, or just give them even more hardships to contend with?!