Synopsis: Gas Mask Girl

The "Bagmen Incidents" have been causing a stir due to a string of murders. The culprit allegedly wears a sailor uniform and conceals their face with a gas mask, earning them the moniker "Mask-san". By chance, the young boy Watta spots someone matching Mask-san's description- and it turns out to be a fellow classmate! Follow the thrilling tale of Gas Mask Girl as she battles on and off-campus. The stage is set for a magnificent performance!