Aki was teased for being active by boys and girls since she was young despite admiring femininity. Now she lives her own way without pushing herself too hard. At that time, Haru, her childhood friend who was often teased when they were little, transfers to the same company as her. When she meets with him again, she remembers his childhood proposal to her. Despite knowing that it was a child's promise, she wonders if he still remembers it... he must not be interested in such a tomboyish woman, right...? However, if he does remember the promise...