You're My Sweet Chaos

Jae notices this lone male fan on his concerts every year, remembers this chubby boy standing in the first row on every Toronto show. One year however, this chubby boy doesn't come and Jae is beyond scared, because his fanboy probably left the fandom.

or

The one where Brian is Jae's fan for many many years. Chubby kid always in the first row at Jae's concerts in Toronto, always shy at the HiTouch after those concerts. But this year, Brian lost weight, grew taller and had a massive fail at ticketing because of another confession.