Boku no Kirai na Otouto

When their parents marry, Shiina and Kazuya suddenly become stepbrothers. Despite a five-year age gap, the two form an unexpectedly close bond. Kazuya, who works professionally as a chef, steps into a caretaker role for his new younger brother, who suffers from an inability to eat food prepared by anyone other than him. For a time, their domestic life seems stable, built on this quiet dependency and shared meals. However, three years later, the dynamic between them shifts drastically. Kazuya grows increasingly withdrawn and unsociable, harboring intense bouts of jealousy regarding Shiina that eventually escalate into sexual assault. Overwhelmed and deeply confused, Shiina struggles to comprehend what has changed in his older brother or how he might repair their fractured relationship. His attempts to distance himself and run away prove futile, leaving him trapped in a suffocating situation with no clear escape. As tension mounts, both brothers are forced toward a breaking point where they must finally confront their buried emotions and find a way to bridge the painful divide between them.