Members: Micu, Yuuto Sugano, Yukimura Hirano, Fumiya Morishita, 仁耶, Dougen, Akemi (11), 尚江, ぶーすと, Yo Onityan, Kensuke Matsu

Japanese Melodic Death Metal band.

For releases after 「瞬殺」, the name 「UNDEAD CORPORATION」 is only used for original works, with 「あんこう」 being used for doujin works and 「鬼あんこう」 being used for Japanese-style works.

Album categorisation from 「暴君」 booklet:
赤あんこう (Aka Ankou): Pine Tree, Akemi, Dougen and Fumiya Morishita's Extreme Rock Project.
あんこうオリジナル (Ankou Original): Original Extreme Rock Project. Same members as Aka Ankou.
銀あんこう (Gin Ankou): Yukimura Hirano and Pine Tree's Melodic Death Metal Project.
鬼あんこう (Oni Ankou): Pine Tree and lyricist Pine's Japanese-style Rock Project.
金あんこう (Kin Ankou): Extravagant guest collaboration-centred Extreme Project.
Swing Of The Dead: Pine Tree-centred 11 person Swing Circle.