While on a seaside field trip, the little boy Aram and Airi find themselves in the middle of a blackout at a public bath. Frazzled to no end, Airi drags Aram inside a closet, but someone walks in on them. Will Aram's secret be blown so soon? Meanwhile, Aram's former fianc e Mariabel shows up at school. What evil schemes does she have in store for Aram and Airi?