My older sister started working part-time at a men's beauty salon, and I started practicing racy massages with her, which was crazy! Mai Tsubasa - Tsubasa Mai

The movie revolves around the relationship between a brother and his older sister who starts working at a men's beauty salon and begins practicing massage techniques with him. As they engage in these practices, they navigate their feelings and boundaries, leading to a complex exploration of sibling dynamics and intimacy. The story delves into themes of family, work, and personal relationships, setting the stage for a dramatic and potentially tense situation.