Segawa, a studious high school student, agrees to help his friends Kasai and Kyouko with math tutoring before an important exam. Despite having harbored feelings for Kyouko in the past, he maintains his friendship with the couple and tries to be supportive.

During the study session, Kasai suddenly leaves on an urgent errand, claiming he’ll return in an hour or two. Left alone with Kyouko, what begins as innocent tutoring quickly takes an unexpected turn when she reveals she overheard Segawa’s earlier confession about his lingering attraction to her.

However, the situation becomes far more complex than simple temptation when it’s revealed that the entire scenario was orchestrated. The story explores themes of manipulation, voyeurism, and the blurred lines between fantasy and reality in relationships.