A tarot divination on New Year's Eve ignited Gu Zhaoming's desire for the unknown. When the tarot cards she purchased online arrived, something strange happened - a gap in time and space opened in the playground, dragging her and her classmates into a parallel world.
In desperate situation, he was rescued by the mysterious "749 Bureau". Faced with recruitment, she chose to return to ordinary life, until strange events frequently plagued her... Finally, she stepped into the gate of Bureau 749, and formed a surprise team with Sister Frost, a strange warrior, a hexagram successor, and a psychic boy to face the supernatural mystery that overturned the world!
