I just noticed this was by Strongberry which means, as a die hard fan of LTNS, I had to watch it. So, this is short, but worth a watch, provided you can find it.

Story:
By far the weirdest premise I've seen moved to screen. In manga/hwa, I wouldn't be surprised by it at all, but I did manage to surprise me since it's not as cliche in this medium. That said, for all that the premise, which I am doing my best not to spoil, shocked me, it was executed well. The beginning of the short film is meant to confuse you a bit, you're meant to make some leaps and jumps and assume some things which will later be proved wrong. I like that.  I was thinking at first that this would be more serious but there's comedy and token cringe-humor spinkled heavily throughout.

Acting/Cast:
The actors did very well. I'm pretty used to short films having generally unconvincing acting, but they held their own okay. The actors weren't revolutionary or anything, the kiss scene was awkward as all get out, but, overall, I didn't actually focus on their acting at any point, which typically means it wasn't blatantly obvious that they were acting.

Music:
I remember a few (namely, two) tunes that I heavily considered Shazam-ing. Make of that what you will.
EDIT: no, I'm definitely going to go find the song at the end, it's cute. Kind of. Like amusing cute, I don't know.

Rewatch Value:
I had to watch it twice, actually. Mostly because cringe-humor is my kryptonite and I have to skip to when everything's okay, then go back and watch the awkwardness. That said, I'd give it three watches at most, and spaced out watches at that, before it's degraded too far to watch again. The premise can only really grab you once, the awkwardness can only curl you up into a ball of cringe so many times. As much as I already think realistic awkwardness might be Strongberry's forte, this is a short film, so it's not strong enough to support that weight. Nor would I expect it to be. It was a fun watch, both times. But I think I'll watch it maybe once more in the future, if that, and be done with it.

Overall:
This is a stupidly long review for a short film, I have no idea why I have so many thoughts on it so I'll be concise here: worth a watch, worth your time, but won't knock your socks off.