Aphorism, Vol. 4

His heart "stolen" from his chest by Tomonaga, Momiji's corpse is removed from Naraka's grounds, leaving the rest of Class One to fend for themselves. With no means to defend themselves from their psychotic adversary, Class One's prospects for survival just got a whole lot dimmer.

Exactly what fuels Tomonaga's frightening bloodlust? And with Momiji dead, what does that mean for his alter ego......?