Maou no Aisai wa Aisarenai
The Demon King's Beloved Wife Isn't Loved at All·魔王の愛妻は愛されない
In a world marked by ongoing conflict between humans and demons, the demon king Gil travels to the Hazelbard Kingdom. He offers a truce, requiring both sides to refrain from crossing into each other's lands. To claim this as her son Clemont's success, Queen Catalina compels her stepdaughter Estelle to wed the demon king.