Hexen Kessel forms.
A four-member lineup is listed as having recorded Seele, but the secondary guitarist and bassist from this lineup are never mentioned again (even though all other members' joinings/secessions are at least noted).
They must have seceded very early on (by May at the latest, as the mini-album was completed by then), or were support members.
V. Hisaki (緋咲) / G. Kanna (神那) / G. Kyousei (鏡影) / B. Misawa (操華)
Drummer MASAMI likely joins around this time, as he's not mentioned in the lineup that recorded Seele, which was finished in May.
Secondary guitarist Kyousei (鏡影) and bassist Misawa (操華) must have seceded or ended support by this time.
V. Hisaki (緋咲) / G. Kanna (神那) / D. MASAMI
Vocalist Hisaki (緋咲) secedes for no particular reason.
Drummer MASAMI secedes.
Atusi begins as time-limited support vocalist.
Support V. Atusi / G. Kanna (神那)
First live is held.
After the band's second live, vocalist Keirin (慧凛) joins.
V. Keirin (慧凛) / G. Kanna (神那)
Vocalist Keirin (慧凛) secedes
G. Kanna (神那)
Vocalist Garaku (餓烙) joins.
V. Garaku (餓烙) / G. Kanna (神那)
Vocalist Tonki joins.
V. Tonki / G. Kanna (神那)