The planet where the Dragon Kingdom is located is shrouded in a mysterious force field called the "Temporal Iron Curtain". Every hundred years, the Iron Curtain will open for one year, briefly connecting with the outside world's "normal time flow" universe. As a result, the civilization of the Dragon Kingdom fell into a cycle of "sleeping for a hundred years and waking up after a year." Technology and culture were constantly reset, and the civilization struggled in a cage. The protagonists will uncover the shocking secrets behind this and fight for the freedom of civilization.
