Euryale is a long-lived succubus that has spent centuries seducing humans for their delicious lust energy. During one-such seduction, a meteor from an unknown origin crashes releasing a strange new energy that fills Euryale and grants her a vision of the future with the command: "save her". Confused by the vision, Euryale follows the meteor and meets Elena, a beautiful human. The two fall in love and Euryale concludes that she must be the one in the vision who she is supposed to save. She translates the vision and decides in order to save Elena, she must travel back to the 19th century and help a man named Spoons to stop a war.

After travelling back in time, Euryale finds herself up against the Succubus Queen Igret who is pulling the strings of war as she has for centuries. The Queen reveals to Euryale a hidden truth about her past that forces her to reconsider everything she thought about herself.

Join the journey as Euryale both uncovers the truth about her past while trying to save Elena and the future.