Ga-yeon comes to Min-jae’s house where he lives alone, and decides to live there. Min-jae is curious about Ga-yeon who he haven’t seen in a long time. One day, Geon-soo…

Seo-yeon is being tutored by Woo-hyeon who is younger than her. She grew interested in her tutor, Woo-hyun, the first time she met him, and he is also fond of…

When they were young, Min-joo and Seo-yeon cared for each other and were closer than brothers and sisters. However, she accidentally learns about Seo-yeon’s tutor, Woo-hyeon, and because of this…