Naoya Fukamachi is a university student whose ability to infallibly detect lies has left him friendless and isolated. When a paper of his piques the interest of his folklore studies professor Akira Takatsuki, a handsome and eccentric man, he soon finds himself dragged into Akira’s research. Now, as the assistant in charge of common sense, he must help his professor interpret an array of unexplainable phenomena… (Source: Yen Press)

Fukamachi Naoya is a university student whose ability to infallibly detect lies has left him friendless and isolated. When his paper piques the interest of his handsome and eccentric Folklore Studies professor, Takatsuki Akira, he soon finds himself dragged into Takatsuki's research. Now, as the "Assistant In Charge of Common Sense," he must help his professor interpret an array of unexplainable phenomena…

Asahi Sena, in her second year as a literary editor, is assigned to Zen Misaki, a writer she admires. They hit it off immediately with their common interest in movies, However, he is also a vampire who is cooperating with the police on cases involving supernatural entities…?