29min and enjoyable. Believable attraction and love, lots of cuteness, and an amazingly realistic heavy make-out scene. Also realistic hyper-awareness of interactions and pda around others.

FYI there is a tiny scene after the credits.

General Spoilers below.
There was one spot where the cinematography was very memorable; the mom and the boys along the fence after she finds out about their true relationship. Very striking and emotional.

What didn't work for me:
-The disturbly weird thing the mom says about her chest and her son. Just, why??? What parent would say that?
-What was the point of the guy sleeping outside his boyfriend's home if he wasn't going to stick around to talk to the mom?
-Seok Yi didn't cry at all believably in the scene with the girl drinking. But it's a very short moment.
-Cuts between scenes were always abrupt.
-The song montage at the end. Apart from the fact that the version I found didn't have subtitles for the song, it was still weird; it felt like a completely different film all of a sudden. It went from a realistic slice-of-life feel to a surreal symbolic feel.