Yumi and I, childhood friends, had always been together since we were young, and being together was taken for granted. There were no special feelings... we were just pure childhood friends... But one day, Yumi said, "I have someone I like, so I want you to help me so we can date." From then on, our relationship began to change significantly... The person Yumi likes is my best friend Tomoki, and because Tomoki also liked Yumi, they became a perfect couple. At the same time that the two of them started dating, the time Yumi and I spent together naturally decreased. It was only when she became someone else's that I realized my true feelings. I made a girlfriend to fill the regret and loneliness... One day, this time it's Yumi... The subtle distance and wavering hearts of two childhood friends who were more than friends but less than lovers... What will happen to their relationship...?
