SCHRÖDINGER NO Neko (シュレディンガーの猫) forms as a limited-period band.
V. Asahina You (朝比奈 悠) / G. Mikasa Neru (御笠ねる) / G. HAL (ハル) / B. kaz / D. Mikage (魅影)
SCHRÖDINGER NO Neko (シュレディンガーの猫) disbands.
Formal band HELTER SKELTER (ヘルタースケルター) starts activities.
Vo. Asahina You (朝比奈 悠) and Ba. kaz leave the band. Vocalist Hikaru (光流) ( HIKARU NISHINO (西野光流) ) and bassist Ren (蓮) ( Xeno's purge ) act as support members around this time
Support V. Hikaru (光流) / G. Mikasa Neru (御笠ねる) / G. HAL (ハル) / Support B. Ren (蓮) / D. Mikage (魅影)
Gt. Mikasa Neru (御笠ねる) changes name to Daisuke (大祐).
Gt. HAL (ハル) changes name to You (祐) and switches to bassist.
Vo. Hiroki (弘樹) joins.
V. Hiroki(弘樹) / G. Mikasa Neru (御笠ねる) → Daisuke (大祐) / ?. G→B: HAL (ハル) → You (祐) / D. Mikage (魅影)
HELTER SKELTER (ヘルタースケルター) is an active visual kei band. They are part of the Showa kayou kei subgenre. They have been active since around 2018.