Tsubaki Nakatsukasa

Tsubaki Nakatsukasa (中務 椿, Nakatsukasa Tsubaki) isBlack Star's Demon Weapons partner. A part of the Nakatsukasa Clan, a famous family of Japanese Demon Weapons, she can change into multiple ninja weapons, plus a katana. Subsequently, she is known as a Demon Shadow Weapon (魔暗器 Maanki) known as a Dark Arm in the English dub. Presently, she is a member of the elite student unit, Spartoi, along with Black Star.

She is voiced by Monica Riai.

To Crossover Flee Project Darkness
Debut Story

The Multiuniversal War of Destiny
Tsubaki returns with Black Star and the rest of the group to fight Discord and Sigma.