Eren?(Riren)

(I don't own characters unless said so, neither do I own the cover. Full credit to the artist)

A young obese boy that gone through a lot all ready decides to confess to his long time crush. That day he saw his crush kissing someone else and saying the special words he wanted him to say to him, it wasn't just a 'somebody' it was the bully he's had since the first day of kindergarten. He lost all happiness that day, conveniently he left to a new school the next week. He never saw his crush again, but he left his first ever original song that he wrote in his crushes locker.After hearing it his crush developed feeling for the obese boy but he was gone.

What happened when fate (hanji) brings them together again? Will old feelings still be there? Or have they vanished?