Madoka finds herself in an unexpected romantic encounter with Mizuru after being pressured by friends to join a group outing. Simultaneously, Ai-chan's obsession with Namikawa-senpai's scent leads to a passionate tryst in their school club room. Both pairs succumb to their mutual desires, exploring their physical attractions in intimate settings.
Takase discovers the swimming club captain, Minagawa-senpai, skinny dipping in the pool at night, leading to an intimate encounter where both experience their first time together. Simultaneously, Akihiko engages in passionate sexual encounters with Natsumi and Yurie, discovering the depths of their desires as he loses his own virginity.