Did he? The only thing i remember is that they were just talking behind he’s back(ibeom with his friends), not that talking behind someone’s back isn’t a big deal, but beating him up to the point he would lose some memories was way too harsh. And there was this scene in the manhwa where Ibeom woke up after dreaming about the day seungtaek beat him up and after he woke up he said sth like:” I remember i confessed to someone “ which made me wonder if he beat ibeom up cause he confessed to him
Yeah ikr, that’s why , by seeing the scene that ibeom woke up after dreaming of being beaten And then he remembered that he’d confessed to someone, i assumed that whether it was cause he confessed to sungtaek and got beaten up, or he’d got beat up cause he was talking behind seungtaek’s back with his friends; cause in the scene that seungtaek beat up ibeom, he first saw a bunch of kids talking trash behind his back and then got annoyed and then suddenly there was the scene that he was sitting on the unconscious ibeom
Read chapter 25.
Inbeom was far from being the victim. After he regained all his memories, he even acknowledged that he was in the wrong and that he pulled a lot of stupid shit.
The first time he got beat up was because he kept on harassing and trash talking Seungtaek after Seungtaek helped him.
Due to still feeling bitter about that incident, he got together with his gang and threatened Seungtaek. Later on he sneaked up on Seungtaek and attacked him while wearing a helmet like a coward. And he did creepy shit to his unconscious body.
Still not feeling satisfied, he later stole some guy's phone to get that guy to bring Seungtaek to him. Then he told Seungtaek lies in an attempt to get him to doubt Kyubin. Afterwards he slammed Seungtaek against a wall, punched him in the stomach and bashed his head using the helmet. Then he forcefully grabbed Seungtak's neck and kissed him. That's when Seungtaek snapped and started beating him up.
Seungtaek was not in the wrong to stand up to a persistent bully. He also did not ruin Inbeom's life. In the end, Inbeom became a much better person (making you forget how he was like in the earlier chapters) and returned to school.

What the heck? Seungtaek literally ruined ibeom’s life, just cause what? The fact that Ibeom liked him? I really pity ibeom, i did live seungtaek at first but tge whole thing’s just so unfair to ibeom.(╯°Д °)╯╧╧
P.s: i still love it tho.
I wasn’t so sure whether to read it or not, but now tgat I’ve read it, it was so good I couldn’t stop reading it and finished it one day, like , the plot is so good ╮( ̄▽ ̄)╭ thanks author san