I'll start off by saying: I didn't give a crap who she ended up with. I find a lot of people online pissed about whether she would end up with one person or not. I read a majority of the webtoon and I find this drama to be a superior version. Why? The drama succeeds in giving Juukyung some character development while the webtoon gives her none and is only stringing along a love triangle between the three because that's the only kind of appeal this kind of webtoon has: normal girl being sought after by two hot "perfect" boys

Story (Drama):
This story is chock full of tropes. People will shit on it for being tropey. Personally, this isn't one of those dramas I would expect anything more from. It's based on a high school webtoon full of tropes - you're going to get a tropey drama. It may be generic but where it SHINES past other dramas of its genre is its humor and its ending.

Now, like I said, I didn't really care who she ended up with. I really cared about her character and how she would improve over time, which she did! I loved it. I think it's loads better than the webtoon. This drama is so funny, there were moments where I would have trouble breathing. The ending wraps it up better than any other drama with this kind of generic premise.

Characters:
Juukyung: Lovable, hate how they made her an idiot to Seojun's feelings but imig. I would have preferred her choosing to go to school without makeup on her own rather than her secret being revealed.
Suho: Cardboard, but definitely improved towards the end.
Seojun: Lovable bad boy who turns into a "nice guy" by the end of it. I felt bad for the dude but like you can't force someone to like you. I'm sorry fam but Juukyung never showed feelings for Seojun once and never led him on or anything of the sort.

Acting:
Moon Gayoung really stole the show for me. I thought I was going to fall in love with her with that roar scene. HOW COULD YOU NOT? She delivered acting out a character who in the webtoon was blander in comparison and was much more unlikable. Additionally, I could not stop laughing how they would be trying to make me think Moon Gayoung out of alll people would be "ugly" LMAO. She is one of the prettiest young actresses in kdrama-land right now. I guarantee if she wasn't Juukyung, the drama would be so much more ass.

Hwang In Yeop in addition was absolutely wonderful. Every time he looked at Moon Gayoung I thought my heart was going to burst. His delivery of a tropey bad boy character was so good and his nuance was fantastic.

Cha Eunwoo, in all honesty, pales in comparison to the other leads. Why? Well his character is kind of cardboard in comparison. But, I have to give credit where credit is due, in his crying scenes, he was pretty good. It kind of sucks that he keeps chosing roles like this but I guess he's making some crazy money right now. I hear he's actually a pretty good actor so I hope he chooses a role that is more dynamic next time.

Music:
I didn't really like the "How do you do song" meh. But the "Call me maybe" is GOD TIER SHIT.
Rewatch:
If I was bored and wanted to watch cute moments, I would 100% go back to True Beauty

You have to realize that for this kind of drama which is really generic to be able to be this strong is impressive. I attribute this to the actors and the PD/director for being able to string together humorous moments + improving the story where the webtoon didn't.

*Spoilers*
I have to say it here since I don't have any IRL friends who watch True Beauty. Honestly, neither Suho nor Seojun deserves Juukyung's love. Suho left and expected her to be all chummy with him? Uh no. And seojun? I don't care how long he had a crush on her. It was honestly getting on my nerves towards the end of the drama that he was being pushy with her and even more so that everyone on the internet was shitting on Juukyung for not reciprocating his feelings. I'm sorry to tell you this but no one deserves love. I don't care how long you simped after someone, if they don't like you back, I'm sorry fam that's your own problem. It really reeked of "I'm a nice guy I waited for years for you so you HAVE to date me" and I'm just not down for that kind of thing. And this is someone who was very sympathetic towards Seojun and even becaming team Seojun halfway through the show.

My perfect ending was if she would friendzoned both and worked on her makeup career, building up her confidence etc. But if that were to happen, the internet would have set on fire. Wars would have started. So, I am content with the ending, mostly because I didn't really care about anyone but Juukyung.