Sometimes all it takes is a little push from fate to find your true happiness... Miya has an older sister, Mirei. Mirei is elegant, proper, and polite, the family's jewel. Miya, however, is none of that. She is scolded for being childish, wearing old kimonos, and having no manners. But even she admires her older sister, especially because Mirei will marry Kenichiro Hirose, Miya's first and lifelong love. As the days lead up to the big wedding, Mirei is nowhere to be found. This marriage is impossible without the bride! To everyone's surprise, Miya takes her chance and volunteers to marry Kenichiro in her sister's stead. Will this be the happily ever after she always wanted? (Source: Fantasista Inc.) Included one-shot: Volume 1: Smile, Again

Toshiue no Dannasama was published digitally in English as A Substitute Marriage with an Admirable Husband by Fantasista Inc. through Manga Planet from June 14, 2022 to June 13, 2023.