One of the fun songs of Yabai T-Shirts Yasan. Here is the MV to the song and there is also a "Nisekoi" version (I believe that this song was one of the soundtracks of the Nisekoi live action movie; I've never seen it).

I remember reading an article in the Japan Times about this band after I discovered them back in 2018. Unfortunately, I'm currently unable to find it.

IIRC, they met at the university in Osaka and performed at a competiton where one of the critics said that they will never be successful because of their unsual lyrics. But now (2023) they are playing on all big rock festivals in Japan and have performed in the Osaka Jo-Hall (in 2021) and Nippon Budokan (this year).

Their lyrics are a bit unusal but fun. There are songs about bad Wi-Fi connections, different file formats and lots of Tank-Tops 😄