Rikon Totei no Keiyaku-kon nanoni, Reikoku Koushaku-sama ni Shuuchaku Sareteimasu

Rikon Totei no Keiyaku-kon nanoni, Reikoku Koushaku-sama ni Shuuchaku Sareteimasu began as a serialized web novel on the Japanese platform Shousetsuka ni Narou before being adapted into a light novel series. Written by Kotoko, the story belongs to the popular subgenre of 'contract marriage' romances, which explore themes of arranged domesticity and evolving intimacy within aristocratic settings. The narrative follows a protagonist who enters into a formal separation agreement only to find her partner’s cold demeanor shifting into obsessive attachment.

The publication of the physical light novel volumes included character designs and illustrations that emphasize the moody, romantic aesthetic typical of the genre. These visuals are intended to evoke the complex emotional tension between the two leads, a hallmark of Kotoko's writing style. The series has found a consistent audience among fans of Japanese light novel romance, often cited for its focus on the gradual subversion of the 'cold duke' archetype.