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Boku wa Imouto ni Koi wo Suru

僕は妹に恋をする

Yori and his twin sister Iku were once inseparable, but a growing emotional distance has left Iku confused and hurt by her brother's coldness. Unbeknownst to her, Yori is tormented by a forbidden love for his sister, a secret that disrupts his life as they share a bedroom.

In a desperate attempt to escape his feelings, Yori seeks physical solace with Iku's best friend and makes plans to leave for a distant boarding school. His fragile resolve shatters completely when Iku begins discussing her own romantic interests and potential boyfriends.

Confronted with the prospect of losing her to another, Yori confesses his true desires. Iku, who loves her brother deeply and fears their separation, is willing to do anything to keep them together, though Yori yearns for a relationship that transcends sibling loyalty.

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