Fujitani Kazuho

Princess Lunafilia, shunned throughout her childhood after a mysterious illness left her legs impaired, has known only cold treatment and isolation. When her weakened body becomes politically convenient, she is forced into marriage with the tyrant of an enemy nation. But on the journey to her new homeland, she is abducted by Cain—the fearsome King of the Night, a man whispered about in terror across the land. “You are far too fragile for me to grant death,” he tells her. Having long abandoned her hopes and dreams, Lunafilia begins, for the first time, to confront what it truly means to live. Thus begins the tale of an overpossessive demon king and a lonely princess—an intense, all-consuming fantasy romance.

The main character, Riku Kuyama, who had worked hard as a student after losing his parents, decided to live in a boarding house. And there is a handsome but misanthropic programmer geek, Tosaka Akimichi. In fact, he has another side to him that Riku has never imagined!

Laila, the daughter of a grieving merchant family, loses her fiancé to a friend. She is suddenly proposed to by Julius, a skilled magician who is feared as a "ghost" because of his appearance. Laila was engaged without knowing his intentions, but as soon as she arrives at the mansion, she is invited to spend the night with him...?