A mysterious band featuring SHIN and Leda is announced at the Acid Black Cherry FILM LIVE tour FINAL feat. ABC BAND event.
The mysterious band is later revealed to be Hantensuru Rokuon (反転する六音), with only members SHIN and Leda being revealed, and they officially start activities.
The rest of the members are revealed at the end of the AQUARIUM MV
First free introduction live is held
Hantensuru Rokuon (反転する六音) is an active visual kei band. They have been active since 2026.