As a former member of C-group, I want to destroy mygo!

[The child I promote + mygo worldview]
Kamitani Yu, who traveled to MYGO, witnessed the destruction of Crychic. Even so, he believed that no one would betray Crychic until he saw his former comrades abandon him and happily establish MYGO together.
In order to fight against the inherently evil pink-haired brat, Kamiya Yu decides to form a new band himself, destroy MYGO with his own hands, and take his friends back from the blonde Aine!
Guitarist, bassist, and then keyboardist Akane Kurokawa—a brand new band, assemble! Toolmen, victory against the band will win back your comrades!
Everyone must come back, not one less, including you...
Shoko Toyokawa!
—But why are even the tools acting a little strange?!