Sinopsis Komik Danshi dato Omotteita Osananajimi to no Shinkon Seikatsu ga Umakuiki sugiru Kudan ni Tsuite:

Shuichi a high school student ended up marrying his childhood friend whom he originally thought was a boy When they reunited 10 years earlier his childhood friend Yuika had transformed into a beautiful girl which initially made Shuichi quite nervous However as time passed he gradually grew accustomed to the sense of closeness as best friendsAnd thus their love story as an ideal couple with a charming touch of innocence begins