1998       Chiwaki and Chara share a mutual feeling of "I kinda want to have girl band". Chiwaki chooses guitar, and Chara chooses drums. Soon after, they invite YUKARIE to be the bassist. Then YUKI joins, and Mean Machine has twin drummers. Finally, Chara invites actress Ayumi to be the vocalist. With her reply of "You'd like me?", Mean Machine was complete. Spring 1999       First rehearsal. Rehearsal was delayed because of the slow delivery of Chara and YUKI's custom-designed drums (glitter, small-fit Pearl). Demo recordings are made of two easiest songs to play. The members are overwhelmed by Ayumi's courageous vocal power. All members then start writing songs for Mean Machine. 2000       The members continue on their own schedules and at their own expense. They slowly being making music for the band. Their plan to make a CD becomes real. 2001       Mean Machine appears in a Tower Records' "NO MUSIC, NO LIFE" campaign poster. The band is finally shown to the public!