• Book Name: Itsuka, Onii-chan no Oyomesan ni… Manga
• Alternative(s): Someday, I'll be big brother's wife...
• Genre(s): Gender Bender Oneshot [No Chapters]
• Author(s): Ryujin
• Status: Completed Download Manga
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Summary: One day in the gardens, Karin and her crush, Aki, meet to celebrate Aki entering senior high...