While on a seaside field trip, the little boy Aram and Airi find themselves in the middle of a blackout at the public bath. Frazzled to no end, Airi drags Aram inside a closet but fails to prevent someone from walking in on them. Will Aram's secret be blown so soon? Meanwhile, Aram's cousin Razu confronts Airi and that made Razu hate Airi enough to want to make her heart stop beating ? As if Razu wasn't trouble enough, Aram's former fiancee Mariabel shows up at school. What evil schemes does she have in store for Aram and Airi? It wouldn't have anything to do with playing with Aram's memory, would it...?