Nanjo is fucking weird too. I mean friend of your lover offer sex so he stops talking to your lover. He then say OK. Like is he ok in the head?? They're both fucked up in my opinion. They deserve each other.
Theory 1: MC's brother is a black snake (maybe a devil?) that tricked them both back in the past. Like a Romeo and Juliet situation. Either snake has grudge against ML or he just really love MC? MC died and got reincarnated but black snake found him first. Black snake made dad torture MC so he can be the knight saving armor.
ML will end up killing MC and then that's when he learns the truth. That MC didn't mean to kill him.
Theory 2 - MC is actually immortal too but lost his memories, the snake just fills his memory with tragic past. So he has been trapped under the snake for so long. So snake powers can have something to do with memories, illusion or mind control.
Theory 3 - the black snake didn't want MC to die but MC stabbed himself and fell off a clifff so snake lost his powers tryna revive him or get him to reincarnate. Maybe he can only reincarnate with ML alive so black snake revived ML. Only to have ML try to kill MC so that MC will hate him and black snake will come to rescue in the future. A weird elaborate plan I guess....
Maybe Taeyong will do something that makes Jinwoo get the job he wants at his family's ent agency. Jiwoo will find out and be mad and break up with him as fubu. Then Taeyong be confused why because he thinks he is helping. But like Jinwoo doesn't want his money and he has pride. I mean totally valid reason for a breakup imo.
He fell so hard but don't notice it. Like whenever he says the the MC was smiling, we don't even see a smile like he is the only one seeing it. His heart goes badum seeing him smile. He throws the milk, he the one jealous. He is always following MC around. Asking MC who is his first, getting angry imagining MC with someone else. Wanting to make MC jealous. He will get his karma for sure especially since MC isn't really seeing them in a serious relationship and think ML is like that with everyone. The chasing is what I'm here for.