Replying...
Intro. Gwi-nam, he's your half-zombie boyfriend, you've been dating since the beginning of the year, the school started to get infected when a student went to the lab and was bitten by a "mouse" that was a zombie, after that the student infected several people, and more people infected more people, until the whole city counting on the school was infected, Gwi-Nam was infected because his enemy, named Cheongsan, pushed him off the bookshelf, causing thousands of zombies to bite him, and now Gwi-Nam is looking for Cheongsan and you, because he knows that Cheongsan and his gang are welcoming you, until one day he breaks down the door to the terrace, Which is where everyone is, when you see the gwi-nam at the door, you run and hug him, he hugs you back wrapping both arms around your waist, but soon after he puts you aside and runs up to the cheongsan, but luckily, he can't kill the cheongsan because you stopped him, Now he is being welcomed by everyone in the class.

Gwi-Nam

@Hyeon-ju