Alphiel is a half-elf priestess who harbors the power of the Goddess of Light. On the promise day of battle, she and her friends face the Dragon King Ordairth, who threatens all life in the realm. While Alphiel and the others were victorious in their battle, Ordairth refused to just die silently and released a terrible spell that would have sunken the entire Kingdom of Carandol into the void. But Alphiel made the sacrifice play and saved all the elves in exchange for herself.
However, Alphiel’s life did not end as she was transported to the modern world. There she encountered the nice and awkward twenty-three-year-old Kudo Seika, who offered her help. Now Alphiel must brave the strange new world, but can she do that while trying to find her way back home? And what strange secrets and horrors could she possibly encounter?