True Beauty

Both were webtoons first. Both have bright cinematography and are light hearted

Both are funny and have romance. True Beauty is more focused on romance though.

Both have elements of high school, although True Beauty is set in a high school whereas it's a side plot in Backstreet Rookie

The ML in Backstreet Rookie is much nicer to the FL than the ML in True Beauty is to the FL.

Both have funny side characters

Both show sibling relationships and friendships

Not an ugly turn beauty but beauty turn boyish. Handsome guy? Comedy? School life u dream of? This is what u looking for. Everybody acting is on point, comedy on point. A start of remake to many country

Both female leads have self esteem issues and skin problems on their faces. Both male leads are handsome and fall for the FLs despite their appearances.

"True Beauty" is a romantic comedy about a high school girl, Lim Ju Gyeong, who rises to pretty girl fame after she masters the art of make-up from YouTube. She turns into a goddess because of her makeup skills, but would rather die than reveal her bare face to anyone. It tells her love story with the only boy that saw her without makeup, Lee Su Ho. Lee Su Ho is an attractive and handsome boy who appears cold because of his dark past but is actually very caring. They grow when they meet each other, share their secrets and find love with each other, but can Su Ho make Ju Gyeong find her true beauty?

Romance 101 (also known as The Right Love Guide) shares a strong structural and stylistic DNA with True Beauty, beginning with the fact that both are live-action adaptations of widely popular, brightly colored Naver webtoons centered around youth culture. Narratively, both dramas follow an endearing, somewhat socially naive female lead who is fiercely trying to navigate a new chapter of her life—while Ju-kyung in True Beauty is overcoming severe insecurity through the art of makeup, Ba-reum in Romance 101 is trying to overcome her clinical lack of romantic experience by treating dating like a hyper-organized academic club project. This setup naturally plunges both protagonists into classic romance-comedy territory, complete with a high-stakes, heart-fluttering love triangle that pairs them up with two distinct, captivating male leads. Most notably, the connection is cemented by actor Hwang In-yeop, who famously brought a captivating, effortlessly cool charm to True Beauty as Han Seo-jun. In Romance 101, he steps right back into that familiar webtoon-heartthrob dynamic as Na Yu-yeon, once again playing a strikingly handsome campus crush who balances a seemingly cool or distant exterior with a supportive, protective green-flag energy.

Both are romance dramas set in high school.

+ love triangles with intense rivalry between ML and SML
+ second lead syndrome
+ tragic friends-to-enemies backstory (btw FL and ML in OS, btw ML & SML in TB)
+ FL is a more reserved character who doesn't want attention

- Both female lead changed their looks, but male lead loved them not only because of their appearance.
- both male lead and second male lead were best friends at first; but became enemies later.
- both dramas has a high chance to get a second lead syndrome!

"True Beauty" is a romantic comedy about a high school girl, Lim Ju Gyeong, who rises to pretty girl fame after she masters the art of make-up from YouTube. She turns into a goddess because of her makeup skills, but would rather die than reveal her bare face to anyone. It tells her love story with the only boy that saw her without makeup, Lee Su Ho. Lee Su Ho is an attractive and handsome boy who appears cold because of his dark past but is actually very caring. They grow when they meet each other, share their secrets and find love with each other, but can Su Ho make Ju Gyeong find her true beauty?

Both FLs have low self esteem and find a way to transform themselves into someone different and popular. Both MLs know their secrets and love them for who they truly are.

Youthfull
college romance
Supportive and protective male lead
Beautiful and strong female lead
friendship /struggle /family problems

Both are idol dramas and webtoon adaptations of school dramas portrayed in a light-hearted way. In addition, both have actress, Kang Mi Ah, in it and you can see her range in acting as well as her being #1 best girl :')

I don't really know how to describe it other than same vibe/aesthetic. Like there's a similar colour palette. Beautiful cast, funny moments a love triangle.

Hwang In Yeop is in both dramas

Both are about romance and break ups

Both have nice cinematography

Both of the main girls are into makeup and pursue it as a career choice. The two male leads in both of the dramas are friends and end up liking the same girl.

Humorous rpmantic comedy
Slow burn remoance but worth the watch.
ML & FL start to have feelinds for one another.
2nd ML thinks his in love with FL...