acid android is the solo project band of yukihiro from L'Arc~en~Ciel. Although the music writer is mainly yukihiro, for the shows other members are tomo (guitar), antz (guitar), kishi (guitar), and yasuo (drums). acid android's first album (self-titled) was released on 2002 and was sold only on the Tracks on Drugs Records website. Danger Crue Records gave the album wider distribution when it re-issued it with new packaging. On March 2003, they released the mini-album faults under Ki/oon Records. After three years, in 2006, acid android released their second full-length album purification.