Leona rescues a mysterious girl, Flea, who escapes from the pursuit of the demon king Garunte. The next day, Flea transforms herself as Mika, a transfer student, but is attacked by Hysteria, a PTA ...

The 4th film in the Heroine In Danger Omnibus tokusatsu series. Yui Kuwana is a school teacher who fights against evil as Leona. One day, Leona finds her student nearly getting hit by a vehicle.