The Children—comprising three Level 7 ten-year-old espers named Kaoru Akashi (a psychokinetic), Aoi Nogami (a teleporter), and Shiho Sannomiya (capable of psychometry)—are members of the Base of Backing ESP Laboratory (B.A.B.E.L.), though are unhappy with the woman assigned to lead them in operations. The Children are deployed to apprehend a criminal esper known as Muscle Ōkama, and while he initially gets away, they are later able to stop him from stealing a gold statue in a museum with the help of Kōichi Minamoto, who had recently been transferred to take over as the field leader of The Children.