After reluctantly being dragged to a festival at her parents' rural hometown, Oriko "Okko" Seki must face her sudden harsh reality: the death of both of her parents in a car accident shortly after they arrive. Now, Okko must live at her grandmother's traditional hot springs inn, which she is surprised to find is occupied by the ghost of a barefoot child. He encourages Okko to follow in her grandmother's footsteps and prepare to inherit the inn. Initially, Okko struggles to keep up with the responsibilities of the inn and the accommodation of guests. However, her parents told her that an inn is welcoming for everyone, and she strives to honor their memory. After discovering a few other spirits around the village, Okko learns that even though her parents are gone, she does not have to be lonely.

The story centers around Nyarlko, a formless Cthulhu deity who can take on the shape of anyone it wishes, but particularly the shape of a seemingly ordinary silver-haired girl. Mahiro Yasaka is a normal high school student who is chased by aliens one night, until "Nyarlko" saves him. (Source: ANN)

A DVD Special of Haiyoru! Nyaruani: Remember My Love(craft-sensei) which is also episode 12 of the series and takes place after the last episode of the anime.

In a school where after school activities are mandatory among all students, Hajime and her friend Sayo come across a new club that they have never seen before. The club is called "The Cultural Activity Preservation Club." The two enter the room to find all kinds of analog jobs and activities, such as handcrafting mats and toothpicks. This is a unique cultural anime mixed with comedy so as not to bore you, this is Double J! (Source: Mangahelpers, edited)