My Best Friend is a Gender Bender Non-H Prequels
Otoko ni Nattari Onna ni Natari Suru Osananajimi no Hanashi
Slice of Life
Follow Tsukushi, a boy who can change genders to "boy", "girl", and "gender neutral", as he spends his days with his best friend Kaoru. (Source: Irodori Comics) Synopsis via AniList
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