Yeon-woo is reunited with her first love, Yoon-jeong, at a reunion after returning from America. While her husband is on a business trip, Yoon Jeong-eun calls Yeon-woo to her house…

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…