Popo School is home to various clubs, but among them is a special club for children with superpowers. These mischievous superpowered kids call themselves the school's problem solvers, constantly seeking out incidents and accidents. Though they are still hasty and clumsy, sometimes arguing or making mistakes, when a problem arises, they put aside their differences and combine their strengths to overcome the crisis. No matter what incident or crisis comes their way, they can overcome it by working together. Hero Circle!