Mygo, it is more important for the three of us to live a good life than anything else

In the legendary era of big girl bands, forming a band was like getting married, and holding a live performance was like having a party, so what did it mean when a band disbanded?
Against this backdrop, Asai Yuto, a boy, receives a call from his childhood friend Nagasaki Suyo, whose band has just disbanded:
"Please, let me forget everything."
"???"
The thoughtful Hiroto said:
"I can't let her be a widow any longer."
During the band's live performance, a beautiful girl with white hair and heterochromia came and tugged at Yuto's sleeve:
"Live, don't you want to join us?"
Su Shi exclaimed:
"Is this what cheating is?"
Kaname shook his head:
"I'm not here to separate you, I'm here to join you."