Junkyu is only realizing that what he and Jihoon have has slowly turned into a love-and-hate relationship, if he can even call it that. But whatever it is, it's eating at him. It's almost becoming a poison. He knows it's time to leave. And now he thinks he's ready. But he finds himself in a conundrum as he also realizes that he feeds on this poison.

Kim jungkyu is a extremely overprotective son. He lives taking care of his single dad who is a young soft and lovely guy while Park rude Jihoon has a poor relationship with his own. Both found their ways tangled when their parents decide to date. Junkyu's goal is to separate them while jihoon  just lives his life being the rudest boy of the street.