Transformation: I'm in the Band's Stickers

Lin Qi, a soul from another world, unexpectedly becomes a girl with maximum charm.

"You mean, I also have a system?"

Lin Qi glanced at his system.

He glanced again at the girls who wanted to form a band with him for life. They just wanted to post pictures to earn some points, so why did it turn into forming a band for life?

...

Ash Aine, who burned herself out to light up others; Nagasaki Motoyo, who traveled back in time only to rebuild Crychic; and...

(The protagonist is set to have never read the original work.)