The heroine was originally a magician in the magical world. While practicing new magic, she accidentally encountered the taboo of black magic and fell into a strange time and space - South Korea. The place she fell into was the waiting room of the country's top artist. After using magic perception, I realized that I was in a waiting room called Big Bang. After that, we gradually got in touch with each other, and a series of wonderful stories happened between us and the members. Whether it was the inexplicable fall into a strange time and space before, or the people and things he met later, it was only a 100% probability.