Prototype band 2gatsu 22nichi, 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 tatoebakonnahanashi@gmail.com for details about the announcement, but they fail to respond to any emails.
First/last oneman is held. The band makes an important announcement “in their own way.” 2gatsu 22nichi, Sekai wa Bokura wo Shiru。 (2がつ22にち、せかいはぼくらをしる。) ends activities and immediately revives as Tatoeba Konna Hanashi (たとえばこんなはなし).
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)
2gatsu 22nichi, Sekai wa Bokura wo Shiru。 (2がつ22にち、せかいはぼくらをしる。) ends activities
2gatsu 22nichi, Sekai wa Bokura wo Shiru。 (2がつ22にち、せかいはぼくらをしる。) was a visual kei band. They were active from 2013 to 2014 and are now disbanded.