diabolicA (ディアボリカー) forms.
At some point, guitarist Senyou and vocalist Kayu secedes. Vocalist Neu Violent Arex joins. (Dates/order unknown.)
V. Kayu / G. Senyou / G. Dyu-ra-theta (デュラシータ)
⇅ (?)
V. Kayu / G. Senyou / G. Dyu-ra-theta (デュラシータ) / B. nori
↓
A-yum begins as support guitarist.
diabolicA disbands
diabolicA was a visual kei band. They were part of the kote kei subgenre. They were active from 2003 to 2007 and are now disbanded.