A serial killer comes to a magical girl who is good at divination. She hides in a closet and overcomes the murderer, who sings the nursery rhyme "Momotaro" as he commits his murder, and decides to exterminate him. Accompanied by Kokkuri-san, Merry-san, and Okiku-san, the magical girl sets out to the accidental property where the murderer is hiding.
Themed around the ambiguities of modern communication, the story of Soredake ga Neck is set in the Hot Hot Mart convenience store, where the mysterious young man known as Muto works in the company of Nekomaru, the slightly sinister store's cat. Is Muto the savior of the Hot Hot Mart? Or is this merely an ominous existence? What sort of stories await at the convenience store?
