Yashiro Nonoyama suffered constant bullying from boys during her childhood, leading her to develop an intense fear of men. She frequently dreamed of being rescued by the girl who had protected her as a child. Surprisingly, Mikoto Saionji, a transfer student to her high school, resembled her long-lost savior. However, Yashiro was taken aback to discover that Mikoto was actually a boy and her first love. She soon discovered that Mikoto was undergoing a rapid transformation into a girl, and the only solution was for them to intimately engage with each other regularly.
