Natsu ga Owaru made The Animation

Yui and Kou have shared an unbreakable bond since early childhood, a connection that naturally deepened into a passionate romance as they matured into adulthood. Unable to resist one another, the young lovers frequently gave in to their desires in nearly every conceivable location, recklessly including the halls of their own school. Their careless indiscretions did not go unnoticed. A malicious staff member responsible for monitoring the school’s security camera footage discovered recordings of their intimate encounters and swiftly moved to exploit the situation, cornering the couple with a cruel ultimatum. Faced with the threat of blackmail, Yui makes a devastating choice to shield Kou from the consequences of their actions. To protect the person she loves most, she surrenders herself entirely to the manipulative antagonist, submitting once again as his personal plaything. Stripped of her autonomy, she endures his escalating demands as he systematically takes everything from her, pushing her past her physical limits and claiming even her most private boundaries in a harrowing sacrifice born of devotion.