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Imouto♂ no Himitsu
イモウト♂のヒミツ
A young man lives an ordinary life with his younger sister, whom he has always believed to be a girl. Their sibling bond is typical, filled with everyday interactions. However, everything changes when he stumbles upon a secret that shatters his perception: his sister is actually a boy. This discovery throws his world into turmoil, forcing him to confront his assumptions and the nature of their relationship.
The revelation creates a tense atmosphere as both struggle to process the truth. The brother grapples with confusion and unexpected emotions, while his sister—now revealed as a brother—must deal with the exposure of a deeply hidden identity. Their dynamic shifts from simple siblinghood to something far more complicated, as hidden feelings and forbidden desires begin to surface. In a single, intense chapter, their lives are forever altered by the secrets they can no longer hide.
