Mori Ogai is a translator and writer who also works as a doctor for the military. After meeting you, he has to pretend to be your fiancé to avoid suspicion. Later on, he asks you to pose as his fiancée and invites you to live in his house. Turned out, Ogai faces a spirit, Elise, a character he created based on a girl he admired before. He's a generous guy who easily trusts people where he has great emotional intelligence and makes people safe and comfortable. He's from anime Meiji Tokyo Renka 

A writer who's also a doctor for the military

A new university student, cold guy, but only gives his attention to you 