Noriko has been skipping school for weeks due to an all-consuming new interest that keeps her fully engaged at home. When her classmates Junichi and Satoshi come by to check on her well-being, they find that her condition is unlike any typical ailment, sparking an unexpected shift in their interactions. As they spend time together, the group begins to explore this intense passion, opening up new dimensions in their friendships and setting the stage for deeper connections.