Mikami Inaba, an ordinary high school boy, accidentally drinks a mysterious potion that causes his pet rabbit, Mina, to transform into a human girl with rabbit ears and a tail. Mina, now a cheerful and affectionate bunny-girl, is completely devoted to Mikami, which leads to comedic and awkward situations—especially with his childhood friend and crush, Mayu Sei. While Mikami struggles to deal with Mina’s new form, he also has to fend off Mayu’s growing jealousy.
Mina fully embraces her human-like form and starts competing for Mikami’s affection, much to Mayu’s frustration. The rivalry between Mina and Mayu intensifies, leading to humorous conflicts. Meanwhile, Mina struggles with her newfound emotions as a human, and Mikami finds himself increasingly confused about his feelings for both girls.
As Mina and Mikami grow closer, she starts to fear reverting to her original rabbit form. The episode explores Mina’s emotional turmoil—whether she wants to stay human and continue her relationship with Mikami, or if she’s destined to return to being a pet.