Transfer student Jun-jia meets Xiao He, the lead singer of the pop music club, at the club fair. Hoping to get closer to him, Jun-jia decides to sign up for the club.

Xiao He invites Jun-jia to join the band as their guitarist, and the two grow closer through practice. Meanwhile, Jun-jia also becomes Diao-qin’s English tutor.

During band practice, tension rises between Xiao He and Jun-jia. Meanwhile, with Jun-jia’s tutoring, Diao-qin successfully passes his exam.

Searching for Garu ends in heartbreak, inspiring Jun-jia to honor the beloved cat with a heartfelt song.

After a concert, Xiao He and Jun-jia share a night beneath the stars as their feelings deepen.

Inspired by heartbreak, Jun-jia stops running and finally chooses to face Xiao He’s heartfelt confession.

Music, an aquarium date, and first memories bring joy before unexpected heartbreak changes everything.

Xiao He’s final confession gives Jun-jia strength as Diao-qin quietly helps him heal from deep loss.

Living with Diao-qin, Jun-jia finds comfort as their shared past slowly comes to light together.

Struggling to finish Xiao He’s last song, Jun-jia begins healing with Diao-qin steadfastly beside him.

Jun-jia completes Xiao He’s final song as BACKSPACE advances and a life-changing music dream awaits him.

As Jun-jia vanishes before the competition, a desperate search begins while Xiao He appears once more.