High school student, Naoya Aizawa is having a normal day with his long time friend, Tama. But on his way to school, every person in the train station suddenly disappears... except for one girl.
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?
The series features Ueno taking on five roles in five episodes. As the title suggests, each episode involves a bag of some kind, such as a guitar case or a mysterious delivery package.