Amazon’s listing for the seventh compiled book volume of Akiko Higashimura’s Gisō Furin (Disguised Adultery) manga is listing the series as ending in the eighth volume in spring 2020.
The manga moved to the LINE Manga service in January when XOY closed on January 18.
Higashimura launched the color web manga on the web manga site XOY in December 2017.
Bungei Shunju published the manga’s fifth volume on September 26, and the sixth volume will also ship on December 12.