OVA
Description
Akira Amemiya is an exceptionally attractive college student engaging in numerous casual sexual relationships with both men and women, characterized by infidelity and emotional detachment. His defining trait is an obsessive, unrequited incestuous fixation on his older sister, an international model residing abroad. This obsession originates from childhood experiences where she dressed him in girls' clothing, treating him as a doll. A critical turning point occurred when she discovered him smelling her school uniform, leading to their first sexual encounter and cementing his pathological attachment.

He strictly forbids anyone except his sister from using his first name "Akira," reacting angrily to others' attempts, associating the name exclusively with her. His relationships involve manipulation and detachment, exemplified by his treatment of his girlfriend Yoshiko, whom he openly cheats on. His initial interaction with Kaname—Yoshiko's friend—begins with her propositioning him to "defile" her as "the most disgusting guy" she knows, following her own romantic betrayal. Despite his typical emotional coldness, he refuses to kiss Kaname during their sexual encounter, reserving that intimacy for his sister.

Flashbacks reveal the sister's psychological control over him, including coercion into cross-dressing and exploitation of his vulnerability. Her physical absence exacerbates his inner turmoil, driving self-destructive behavior. His relationship with Kaname evolves as her persistent emotional support challenges his defenses. In the concluding arc, he experiences a psychological breakthrough, recognizing his sister's selfishness and the relationship's toxicity. This realization allows him to relinquish his obsession and permits Kaname to use his first name, symbolizing his emotional transfer and acceptance of her love. His final acknowledgment of Kaname's beauty and worth marks his transition to genuine connection.

Visually, the character alternates between minimally animated still frames during non-sexual scenes and fully animated sequences during intimate moments, reflecting the narrative's emphasis on his psychological and physical duality.