Shintarō Kisaragi of "Kashiwa City", Japan is an 18-year-old hiki-NEET who has not left his room in two years, engrossing himself with his computer and the internet. However, on August 14, due to the messing about of the cyber girl Ene, who lives inside his computer, Shintarō spills soda on his computer keyboard and is forced to go outside to buy a new one, due to the fact that during the Obon festival none of the stores will deliver until August 17. (In the manga's second alternate storyline, he goes to buy food for his female pet rabbit; Tono.) Shintarō goes to the department store, where a group of criminals break in and hold the people inside hostage for ransom. Here he comes in contact with a group of people calling themselves the "Mekakushi Dan" (メカクシ団, lit. "Blindfold Gang"), who stop the robbery with their mysterious eye powers and "force" Shintarō to join into their group.
Before this occurs, Shintarō's younger sister, Momo Kisaragi, is a popular idol and first-year high school student who has the ability to attract people's attention. This is due to the "Drawing Eyes" ability, which she cannot control and causes people to look at her wherever she goes. One day, while fleeing from a horde of fans, she meets the Mekakushi Dan leader, Tsubomi Kido, who invites Momo to join, which she does.
