Heroine girls assault sailor Mermaid

Sailor Mermaid, a beautiful girl warrior who struggles to help the men attacked by the devil. A new magic appears with the hostage. The demons who attack unresistant sailor Mermaid... And the devil commands the men to "sailor" the sailor Mermaid. The men are ordered to blame the sailor mermaid's calamity... Sailor mermaid who endures the hostage and desperate action to help the men... But it was a trap created by the men and the demons! Sailor mermaid who doesn't know so... Bad end