Oh Boy, Was I Wrong About Her

Tenkou-saki no Seiso Karen na Bishoujo ga, Mukashi Danshi to Omotte Issho ni Asonda Osananajimi Datta Ken / 転校先の清楚可憐な美少女が、昔男子と思って一緒に遊んだ幼馴染だった件 / Tenbin / A Neat and Pretty Girl at the Transfer Destination Was a Childhood Friend Who Used to Think That She Was a Boy and Played With Her. / The Neat and Pretty Girl at My New School Is a Childhood Friend of Mine Who I Thought Was a Boy