Once upon a time, this was a world where humans and magic coexisted, but an accident caused magic to disappear. In a blink of an eye, 1,000 years have passed, and humans have even forgotten that they once had magic. Mantsuki Kohinata (voiced by Miyuri Shimabukuro) is a lively and cheerful female high school student. She is not good at saying no, and she will agree to anything someone asks her to do, so she is very popular in the local area. One day, Mantsuki Kohinata met a mysterious girl named Shingetsu Ernesta Shenhai (voiced by Atsumi Tanezaki). The girl who looked indifferent, aloof, and kept people away from her was also melted by Mantsuki Kohinata's enthusiasm. Under the leadership of Shingetsu Ernesta Shenhai, Mantsuki Kohinata learned for the first time that there was a doll called Almanox in this world, and also learned the truth that magic was not completely extinct.