Volume 1 of Watashitachi wa Dekitemasen! ~Shoya Shippai Shita Moto Kon’yakusha to Ōmei-kon de Yarinaoshi~ — drawn by Nain Yurie and based on the original story by Machibari — officially went on sale on November 13, 2026, published by Flex Comix.

Story

The protagonist, Cynthia, is a former earl’s daughter whose family has fallen into ruin. She now works as a civil official in the Crown Prince’s office, dedicating herself entirely to her job. One day, however, the Crown Prince orders her to enter a sham marriage with Ignas — her former fiancé. The catch: the two share an awkward history involving a “failed wedding night” from years ago. The series is a mutual-pining romantic comedy that follows the pair as they navigate their complicated feelings while pretending to be a couple.

Special Content in Volume 1

The first volume includes a brand-new short story written exclusively by original author Machibari, making it a must-have for fans of the series.

Serialization and Voice Comic

The manga is currently serialized in COMIC Polaris. A Voice Comic adaptation has also been announced, with Tanaka Chiemi voicing Cynthia and Negishi Yōtarō voicing Ignas.