Kaoru Akashi (a psychokinetic), Aoi Nogami (a teleporter), and Shiho Sannomiya (capable of psychometry) are three Level 7 ten-year-old espers also known as "The Children", a special task force assembled by the Base of Backing ESP Laboratory (B.A.B.E.L.), pursue a dangerous esper criminal assisted by KÅichi Minamoto, unaware that he was chosen to become their new field leader.