honestly, I don't think there's much more I would ask for from this series. (and there really isn't much, just maybe one more hug at the end? lol)

it's cute, short, and thankfully, simple enough for a 4-episode series so you don't get left feeling like it was cut short without much resolution. the story is so simple that i'm not sure this series COULD have dragged it out to more than 5, 6 episodes maybe, which is also partly why it worked here.

the story doesn't drag out nor does it feel rushed despite being confined to only 4 episodes, the pacing was surprisingly well done for a series with the name "21 /days/ theory". whoever worked on the story did well in balancing out the storylines with Toy, Frank, and Q so that none of them felt draggy or like they were taking away too much screentime from the other plotlines? I know some people complained that there was too much focus on theirs but I believe it was needed so that we didn't get sick of X and Q lol.

Another pleasant surprise is everyone's acting? I think most of the cast did surprisingly well for what seems like most of their first or second roles. Q in particular did well in showing his growing feelings and softening towards X near the beginning, which is very sorely needed in one-sided enemies/rivals to lovers plots like these. Usually I'm left questioning when the feelings changed from annoyance/irritation to like, especially when there is a third party girl involved, but I didn't need to at all here.

there's a surprising amount of heart that went into this story to the point that I worried it might end bittersweet but no, it still remained sweet and cute at the end. Just a cute high school love story with some very /teenager/ high schoolers and an equally mature conflict to match, if you understand what I mean by that.

Other misc comments I'm not sure how else to fit in here but want to mention:
-We need more older queer figures like Uncle Man in our BLs.
-I do love a good friend group in my shows, Q's friend group would probably rank among my top ones if this were a longer series that let them get developed more.
-This was a very PG show! I don't particularly mind that but I do wish we got to see them do a final hug or something at the end.
-I also do wish we got an actual reunion instead of the cut away we got. It made Q and X's whole last conflict feel like it fell flat after all that build up when we never get to properly see them make up...

Overall, this series felt surprisingly...honest? Our teenage characters acted like....teenagers, a bit immature and stupid, but not ridiculously so. This was mostly refreshing and sweet, much more than I could've expected from a bite-sized series but it is still a pretty short series, which is also why I recommend people giving it a shot anyway if they think it sounds up their alley. It's only 4 episodes and doesn't have a sad ending!