Nanami Aoi, a charge mermaid who is in charge of the mechanics of the Denkage Sentai Chargeman, is attacked by someone on her way back to the base after maintenance on the special duty ship Charge Base. The person who attacked the Charge Base was the hijacker Galactic Beast Raidon who is famous in space. Mermaid fights alone to protect the Charge Base, but Lydon is no match for her and is forced to retreat. Nanami is scrambling to get the charge base back, but the charge base system is in Lydon's control and there is nothing he can do about it. Nanami transforms into a Charge Mermaid again and continues to fight without the help of her friends, but not only is Lydon no match for her, but Gozua's executives, Garuk and Mahames, also appear, and she is subjected to an onslaught, and her enhanced suit is destroyed and thoroughly tormented. The battered mermaid is forced by Mahamesh to wear a humiliating chastity belt over her enhanced suit. The mermaid desperately resists the damage of the battle, the stimulation of the chastity belt, and the shame, but is knocked down by Garuk and Lydon. Furthermore, Nanami, who was untransformed, was even tossed around by the Bidler soldiers. ［BAD END］