Relatives play Aya Sazanami, a beautiful aunt - Haruka Suzumiya

The movie explores the complex and intimate relationship between an aunt and her nephew, who has returned to live with her after a long absence. As they navigate their feelings and boundaries, the nephew struggles with his desire for his aunt, while she grapples with her own emotions and the power dynamic at play. The story delves into themes of forbidden love, familial bonds, and the blurred lines between innocence and experience.