Ojou-sama to Inu: Keiyaku-kon no Hajimekata

Painter Tsugumi Kanada and Kusase Ha, who serves as a model for her nude drawings, are a newlywed couple who got married just six months ago. At first glance, they appear to be happily married, but in fact Ha is a fake husband who Tsugumi "contracted" with for 30 million yen to escape an unwanted arranged marriage. As they live together under the same roof, Tsugumi and Ha gradually grow closer to each other. But there is a secret between them... https://www.cmoa.jp/title/349722/