Aoi Nanae, a member of the special effects superhero team "Chouei Sentai Chargeman," draws power from Earth's Gaia Force to transform into Chargemaid and protect humanity. She fights to stop Godesto, a monster serving General Garuk, a high-ranking officer of the evil alien force Gajooma that threatens Earth. During a mission to destroy Garuk's battleship, the Gajoomark, she suffers a critical malfunction—her transformation ability fails. Returning to Earth, Aoi confronts the newly emerged Godesto while powerless and unable to transform. She appears to shoot Godesto down with her Charge Bazooka, but it turns out to be a trap designed to capture her. Soon, her body is subjected to a hellish torment of humiliation unlike anything she's ever experienced—[BAD END]