Otome Game no Hametsu Flag shika nai Akuyaku Reijou ni Tensei shite shimatta...

Originally appearing as a web novel on the user-generated site Shousetsuka ni Narou in 2014, Otome Game no Hametsu Flag shika nai Akuyaku Reijou ni Tensei shite shimatta... was penned by Satoru Yamaguchi. The story emerged during the rising popularity of the isekai subgenre, specifically focusing on the premise of a protagonist reincarnated into the antagonist role of an otome game. Its success led to a formal light novel serialization beginning in 2015, featuring illustrations by Nami Hidaka.

The series is credited with helping solidify the villainess trope within modern light novels and manga. Yamaguchi sought to subvert traditional narrative stakes by creating a protagonist, Katarina Claes, who is defined by her dense, comedic approach to avoiding her scripted doom. The work was well-received for its lighthearted tone and ensemble cast, eventually spawning an extensive media franchise including multiple manga adaptations and a successful television anime series.