Sailor Aquas defeated the demon king Gante, who is trying to destroy humanity, after a fierce battle to the death. The earth was at peace, and Sailor Aquas sealed her transformation and lived a normal life as a woman, Shiori Mizuki. And 5 years ... Shiori also has a loved one, Makoto Shindo, and decides to get married. I was supposed to live a happy life. But there were those who were waiting for the right moment. They were Elsa, the wife of the demon king Gante, and their daughter Isabella. They were waiting for Sailor Aquas to marry them in order to make them suffer the same as them. Shiori, who was abducted by Makoto, breaks the seal and transforms into Sailor Aquas and goes to enemy territory. However, Sailor Aquas, who cannot resist because of the hostages, is beaten by Elsa and the others and sucked on her body. Will Sailor Aquas be able to save Makoto and defeat Elsa and Isabella? ［BAD END］