After meeting in medical school, Eun-Hyuk and Kim Areum (the reader) became close friends. He soon began to feel something for Areum, but he was too afraid to tell her. Areum began to feel the same way about him, but she was afraid that their friendship could become destroyed, so she didn't know how to tell him. But she eventually mustered up the courage to tell Eunhyuk how much she loved him. They both ended up dating. When she moves in with Eun-hyuk and Eun-yu, what will happen?