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. [Written by MAL Rewrite]

Saito High is a high school with its spiritual beings and a principal whose hobby is collecting occult paraphernalia. The school has the prophecy-chosen members of the Holy Student Council to protect it. These students have problems of their own; Haruto Houjo, the president, has a way of summoning spirits, and would resign from his duty for a normal life if it weren't for the principal. Kazumi Ryodo, the next member, is good at being possessed and has something for the Hanako. The last member is Mutsuki Asahina, who is a master of exorcism and is attracted to small boys. Unfortunately, these three are in charge of keeping the school in line and defending the world from supernatural beings, and this mission brings them through wacky predicaments. (Source: ANN)