She Is Convinced That Her Half-Brother Is a Girl
Kataoya no Chigau Otouto o Imoutou da to Omoi Komu Ane
片親の違う弟を妹だと思い込む姉
Kataoya no Chigau Otouto o Imoutou da to Omoi Komu Ane
片親の違う弟を妹だと思い込む姉
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-Description
Narumi-kun's sister is convinced that he is a girl, no matter how many times he tells her... [Original Pixiv Series](https://www.pixiv.net/user/39088846/series/112265)