Once a hot springs inn, now a boarding house with extraordinarily cheap rent, Yuragi-sou is virtually uninhabited save for a few peculiar residents. As rumor has it, it is haunted by a vile ghost which scares away all potential tenants. Therefore, it is the perfect refuge for Fuyuzora Kogarashi—a broke, homeless psychic seeking an affordable roof to stay under and ghosts to exorcise. Kogarashi prepares for a face-off against the ghost, only to find out it is not as malicious as the rumors made it out to be. Instead, it is the ghost of a beautiful, silver-haired girl whose only recollection of her life before death is her name: Yuuna. Even more baffling is that the other tenants of Yuragi-sou not only are able to see Yuuna as well, but each has their own supernatural ability. Amidst the chaos caused by his quirky fellow residents, Kogarashi attempts to uncover the regret that keeps Yuuna anchored to the world of the living, lest she become an evil spirit sentenced to spend her afterlife in hell.

One day after school, Asahi Kuromine stumbles upon the truth that Youko Shiragami, the girl he has a crush on, is actually a vampire. According to her father's rules, Youko must now quit school in order to keep her family safe. However, Asahi does not want her to go and promises that he will keep her true nature secret. Unfortunately, this turns out to be easier said than done, as Asahi is a man who is easy to read and is unable to keep any secrets to himself. And this is only the beginning of his troubles—more supernatural beings enter his life, and he is forced to protect all of their identities or face the consequences. Jitsu wa Watashi wa follows Asahi as he deals with his new friends and the unique challenges they bring, struggles to keep his mouth shut, and desperately tries to win Youko's heart in the process.

A short OVA that was bundled with the limited edition of the eleventh volume of the manga.

Vanitas and Noé Archiviste head out to the town of Gévaudan in search of the Beast, an enormous wolf-like creature that has slaughtered hundreds of people. Suspecting that the Beast is a curse-bearing vampire, Vanitas primarily aims to heal it using the powers of his grimoire. Along the way, the two get separated and suddenly travel back to the past—to the exact moment the Beast is lurking in the woods. After a battle against the gigantic wolf and a vampire hunter, Vanitas decides to team up with Jeanne in order to find Noé. Despite being allies, Jeanne's goal is the opposite of Vanitas', as she was tasked to kill the Beast—suspecting it may be someone she used to know. Meanwhile, a severely wounded Noé is picked up by the mysterious Chloé d'Apchier and her servant. Like Noé, Chloé is a vampire whose existence was erased from the public's knowledge. She has been a guardian for future generations and once tried to find a way to become human again. While Noé is grateful to Chloé for her hospitality, little does he know that she might be siding with forces far more dangerous than the Beast itself.