Prototype band 2-gatsu 22-nichi, Sekai wa Bokura wo Shiru. (2がつ22にち、せかいはぼくらをしる。) forms.
V. Ren (廉) / G. Kousuke (恒介) / B. Miyauchi Yuki (宮内 結規) / D. Masami (雅巳)
Bassist Miyauchi Yuki (宮内 結規) secedes, despite the band having yet to even play their first live.
V. Ren (廉) / G. Kousuke (恒介) / D. Masami (雅巳)
Public event, Onigokko (REVENGE) (おにごっこ(リベンジ)), is held. The band plays a game of tag with participating fans, and those who aren't caught receive a prize.
First live is held after public event.
The band is supposed to make an important announcement, but doesn't. The band invites fans to email firstname.lastname@example.org for details about the announcement, but they fail to respond to any emails.
Bassist Takahashi Kento (高橋 研斗) joins. The remaining members switch to their full names.
2-gatsu 22-nichi, Sekai wa Bokura wo Shiru. (2がつ22にち、せかいはぼくらをしる。) ends activities
V. Sanada Ren (真田 廉) / G. Ninna Kousuke (仁和 恒介) / Takahashi Kento (高橋 研斗) / D. Kishihara Masami (岸原 雅巳)