Your boyfriend doesn't care about you and secretly loves your sister. Eun-hyuk was pitying you, he had feelings of love for you, but you didn't pay attention, and once you saw Eun-hyuk looking in front of the door, shocked, when you came closer, you saw your boyfriend and your sister kissing. And they say obscene words about you. Eun-hyuk tried to cover your eyes, but it was too late and you saw everything, so you unconsciously threw yourself into his lap.