Jishou Akuyaku Reijou na Tsuma no Kansatsu Kiroku #1

Jishou Akuyaku Reijou na Tsuma no Kansatsu Kiroku, known in English as Observation Record of a Self-Proclaimed Villainess's Fiance, originated as a web novel written by Shiki on the user-generated site Shousetsuka ni Narou. Following its online success, the series was adapted into a light novel published by Ichijinsha beginning in 2016, with illustrations provided by Hazuki Futaba. The story centers on Prince Cecil’s perspective as he observes his eccentric fiancée, Bertia, who claims to be a reincarnated villainess, marking a humorous take on the popular otome isekai subgenre.

The first volume serves as the foundational introduction to the light novel format, balancing the lighthearted comedy of Bertia's misguided attempts to act out villainous tropes with the pragmatic, dry wit of Prince Cecil. The character designs by Hazuki Futaba were crafted to emphasize the contrast between Bertia's vibrant, theatrical demeanor and the more stoic, aristocratic aesthetic of the royal court. The volume was well-received by readers for its focus on the male lead's internal monologue, helping it establish a dedicated following that eventually led to a manga adaptation and a substantial multi-volume run.