Danshi dato Omotteita Osananajimi tono Shinkon Seikatsu ga Umaku Ikisugiru Ken ni Tsuite

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. (Source: Seven Seas Entertainment)