The fourth installment of the popular lesbian series. Hinata and Mamiru are classmates who attend the same girls' school. However, their relationship slowly changes after Mamiru writes Hinata a love letter, and each day their feelings for each other grow stronger, developing into a relationship of mutual awareness. Eventually, Hinata delicate relationship turns into something more than friendship, and the feeling that "I love you after all" grows stronger within each of them, and gradually deepens... This is a story of a small love between two small-breasted girls, with feelings that grow stronger every time they rub against each other, in a total of five chapters.