She Is Convinced That Her Half-Brother Is A Girl Manga [update: Nov 25, 18:00] 4.2 Alternative 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 Author(s) Mizukami Ice Status Ongoing Genre(s) Comedy - Slice of life View 85.200 Chapter First Chapter last She Is Convinced That Her Half-Brother Is A Girl Content Narumi-kun's sister is convinced that he is a girl, no matter how many times he tells her... She Is Convinced That Her Half-Brother Is A Girl List Chapter Read more Maybe coming in the next issue: She Is Convinced That Her Half-Brother Is A Girl Chapter 73 She Is Convinced That Her Half-Brother Is A Girl Chapter 74