The Princess of Convenient Plot Devices Novel Volume 6 was written by Mamecyoro with illustrations by Mitsuya Fuji.

The survey of the castle town ended in unexpected betrayal by Sirius' trusted subordinate, Hugh. Octavia didn't really know how to react to the incident, but she had her knight Clifford to console her. With a spring back in her step and the Hugh problem temporarily resolved…the day she introduces her lover to her family is right around the corner! All the candidates were failures, so if anyone is going to fill the role of her fake lover, she only has one option left…