My childhood friends, Yumi and I, have always been together since we were young, and it has become common for them to be together. - He doesn't have any special feelings... he's a pure childhood friend... - But one day, Yumi said, "I like someone so I want you to help me out so I can date you." - From there, our relationship began to change dramatically... - The person Yumi likes is her best friend Tomoki, and Tomoki also liked Yumi, which made the couple a great success. - As the two began dating, the time spent together and Yumi naturally decreased. - I realized my true feelings only when I became someone else. - I created her to fill my frustration and loneliness... - One day, Yumi...the subtle distance and shaking heart between two childhood friends, who were more than friends but less than lovers... - What will happen to the relationship between the two?