Even though I'm not supposed to fall in love with my idol!?

A college student named Mai admires the bass player and streamer "Single Manbou" and because of that, she joins a light music circle. However, there she meets Mitsui, who turns out to be her idolized musician in the flesh! She doesn't want to be found out as his fan, let alone become acquainted with him, and yet for some reason Mitsui is steadily shortening the distance between them!?

(Source: Pixiv Comic)