天魔・夜刀

He's the leader of the Yatsukahagi that controls over Edo as his territory. Along with other Tenmas, for unknown reason they have an immense hatred towards the outsiders and will brutally kill anyone that dared to invade Edo.

"Here i swear. Extravagant exhaustion (滅尽滅相), i will not let anyone make it out alive."

In truth he's the main character of Dies Irae, Ren Fujii. After Marie universe is completed, he served as one of the Three Guardians in the 5th Heaven, along with Mercurius and Reinhard Heydrich. However, all of them save for Ren have been brutally slaughtered by Hajun. He along with several survived members of Marie universe have formed a group in the territory of Edo, which is the remnant of Suwahara City in order to prevent Hajun's law that will destroy the whole world once it has been completed.