Doom is a Japanese thrash metal band by former Zadkiel members Koh and Jouichi.
Formed in Tokyo in 1985, the first line up included Takashi "Taka" Fujita (vocals/guitar), Koh "Pirarucu" Morota (fretless bass) and Jouichi "Joe" Hirokawa (drums).
The group gained a lot of popularity and signed to the Japanese label Invitation.
The band continued to release many more albums and even played a gig in the United States at CBGB's in October 1988.
Doom later announced they would re-form, and had their first full performance on January 12, 2015, at Club Citta in Kawasaki.