My Secret Brother is a romance Manhwa by Willow. It is also known by it's alternative title "Unstoppable Siblings". It ran from 2014 to 2019, spanning five seasons with 210 chapters, plus several side stories. This work can be read in English here
on Lezhin Comics. The author's Twitter account for My Secret Brother can be found here as well.
Hanmi and Junhyuk have just transferred to a new high school where Hanmi meets an odd boy named Gun who helps her with a drink from the vending machine. Hanmi gets an instant crush but is dismayed when it turns out Gun is kinda dense when it comes to his surroundings, so much so that he didn't even remember her afterwards even though he sat behind her in class. Hanmi, wanting to make him jealous, lied to everyone that Junhyuk, whom people saw Hanmi come with on a bike on their first day is her boyfriend and so begins their tale of this odd mess trying to fix it. It then only gets harder as Hanmi and Junhyuk find their dark past catching up with them in the wrong way.
My Secret Brother contains examples of:
- Action Girl: We quickly find out that Hanmi is not one to be messed with...
- Adults Are Useless: We find out how many students suffered at Hanmi's previous school and the teachers are revealed to know about it and choose to ignore it.
- Big, Screwed-Up Family: As more of Junhyuk's and Hanmi's past are revealed we see it is like this.
- Bully Hunter: Played for drama. It's actually hunters to be exact. Alot of the students in Hanmi's previous school were this because it was apart of the "system" and it was a good way to make money.
- Delinquents: All three main characters have had to deal with a lot of them in the past and currently.
- Dodge Ball Is Hell: Hanmi while dealing with her frustration turns soccer into dodgeball much to the opponents dismay in one chapter.
- First Girl Wins: Played with. Gun may have been the first boy Hanmi met in her new school, but Hanmi knew Junhyuk since she was a child. Bonus points is that he is the first boy the audience ever sees. While she does get together with Gun briefly, at the end of the series she more or less ends up with Junhyuk.
- Played straight with Ginny and Yueun, who Ginny first met in her hunt for Hanmi and Junhyuk.
- Girl Posse: Poor Hanmi has to deal with this on her first week of school. Not that she can't handle it, but still...
- Kissing Cousins: With the way Hanmi and Junhyuk act around each other, the people who know that they are blood-related are quick to notice that it seems that there is something going on between them, or at least deeper feelings involved. It seems that Junhyuk is aware of this much to Hanmi's dismay when he tries to fix things...
- Love Dodecahedron: It's a funny mess...
- Maybe Ever After: The webtoon ends at a rather ambiguous note. After several years of separation, Junhyuk finally tells Hanmi that he loves her. They embrace, and the webtoon ends. A side chapter shows the two of them hooking up at the end of the story proper, but is considered non-canon and set in an alternate universe.
- School for Scheming: The previous school Hanmi and Junhyuk went to had a major problem with this involving a sort of bully system and money. Unfortunately Hanmi was lured into it as well and paid the price which is why she and Jun transferred to a new school at the beginning of the series to start a new. It didn't work...
- Sibling Team: Hanmi and Junhyuk. Although they are actually cousins.
