Konomi Nakayama is a second-year junior high school student whose body is filled with power. People call her powerful Konomi. By the time she was 14, she had "measles" and her mother and her brother left her daughter to go to a newly opened restaurant. Tataranokonomi is dissatisfied, but a delivery boy arrives without asking. Her mother took care of her. However, the boy carefully observed Konomi's meal, ate up the food she left behind, and left. What a nasty fellow! Konomi was indignant, but...?