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)
I Thought My Childhood Friend Was a Guy… Now She’s My Wife and It’s Going Too Well! is a completed manga by hamubane, first published in 2023. It blends romance, comedy and slice of life. You can read all 21 available chapters of I Thought My Childhood Friend Was a Guy… Now She’s My Wife and It’s Going Too Well! online for free on MangaPulse; the newest is Chapter 20, added 2026-06-24. The series is finished, so you can read it from start to end in one go.