Popular actresses Mari Takasugi and Aoi Kurugi have never co-starred in a lesbian scene before. Though both have appeared in numerous works, even as close friends, they feel too shy to kiss in front of each other. However, when one spreads her legs in a wide M shape and receives slow, thorough cunnilingus, she hides her face while moaning passionately. In the schoolgirl-themed drama segment, they frantically pull each other's hair while bringing one another to climax with fingering. Eventually, their intimacy escalates into full lesbian play. Symbolizing their deepening bond, they express their feelings by writing heartfelt letters to each other, concluding the story on an emotional note.