Mahiru's pet Kuro turns out to be a servant vampire, or servamp. Mahiru rushes back to school to find out what happened, but his friends do not remember. All Mahiru knows is that a person named Tsubaki is after Kuro...

Mahiru meets with another suspicious character, a visiting pianist from Austria. He comes to find that the pianist, Licht, is actually the Eve of Greed, Lawless. However, Lawless isn't as friendly as the other siblings Mahiru has met so far.

Kuro continues to act strangely ever since Lawless brought up the past. Mahiru steps gingerly around Kuro, unsure whether to ask about his past or not. All the while, Tsubaki moves to take revenge on Lawless and his Eve, Licht.

Licht breaks through the wall to give Lawless a piece of his mind, face-to-face. Licht gets swallowed up by the darkness and the curtain rises on Lawless' past. What is it be unique? How can one become the one and only?