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.
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)
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