Jooyeon and Nana are known for their skinship. Mostly Nana is the one who does anything to catch Jooyeon's attention. On the other hand, Jooyeon likes to pretend that she doesn't have interests to the latter. Jooyeon tries her best to stay what their relationship is, but the younger one is expecting more of her. Then one day the younger one mistakenly thinks that Jooyeon is only playing with her. Which leads Jooyeon to face her mistakes.