Yumi and I have always been childhood friends, and it was natural for us to be together. We didn't have any special feelings for each other...we were just pure childhood friends...But one day, Yumi said, "I have a crush on someone, and I want your help so that we can date." From that point on, our relationship began to change drastically... The person Yumi liked was her best friend, Tomoki, and Tomoki also liked Yumi, so we became a beautiful couple. As soon as we started dating, the time Yumi and I spent together naturally decreased. It was only after she belonged to someone else that I realized my true feelings. I got a girlfriend to fill the frustration and loneliness I felt...Then, one day, Yumi came over...The two childhood friends who were more than friends but less than lovers, their delicate distance and wavering hearts... What would become of their relationship...?