wao, tsubaki, you sing pretty well for a villain XD

Servamp

Perfection Noise Drama CD sung by Chisato Kurumiya (CV. 木村 良平) 

Achromatic — Chisato Kurumiya [CV. 木村 良平]

*the official duet song: Who is Coming, uninvited
*sung by the characters / seiyuu of Tsubaki (Servamp) & Belukia (subclass)

*the official duet song: Akashi
*sung by the characters / seiyuu of Hugh (Servamp) and Tetsu (Eve)