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Boku no Kanojo no Tsumugi-san.
僕の彼女の積木さん。
Tsumugi-san is a quiet and reserved girl who keeps to herself at school. One day, her classmate, the protagonist, discovers her secret: she is a "building block" girl, meaning her body is composed of interlocking blocks that can be taken apart and reassembled. Intrigued and fascinated, he begins to interact with her, learning about her unique nature and the vulnerabilities that come with it.
As their relationship deepens, the protagonist finds himself drawn to Tsumugi-san's unusual form, leading to intimate encounters that explore the boundaries of their connection. However, Tsumugi-san's block-like structure presents both physical and emotional challenges, forcing them to navigate trust, consent, and the fragility of her existence. Their bond is tested as they confront the implications of her condition and the desires that arise between them.
