I Thought My Childhood Friend Was a Guy… Now She’s My Wife and It’s Going Too Well! (Manga) Vol. 1

A confusion made in childhood leads to a surprising yet beautiful relationship in this sweet romance manga.
Shuichi and Yuika have been close friends since they were kids. But Shuichi had always thought Yuika was a boy so their reunion 10 years ago was filled with surprise when Yuika had seemingly transformed into a beautiful young woman! Intimidated by his friend’s beauty, Shuichi was sure this would be the end of their friendship. And it was… because the two traded in friendship for marriage! A sweet and charming love story about finding friendship and love with your person.