In 2021, in a parallel world extremely similar to our Earth, holographic projection technology is advancing rapidly and has reached the high standards seen in animated shows. Before long, all kinds of card battle games are on the rise, and a dueling craze sweeps through the streets and alleys. Riding this wave, Mr. Du, designer of the Ruins of Civilization card game series, creates holographic battle equipment for his game. A game that had gone almost unnoticed for two years becomes a nationwide hit as a high-quality domestic card game. In the second half of 2021, the third chapter of Ruins of Civilization, The Cage of Natural Selection, is about to be released, and the first National College League officially kicks off, attracting enthusiastic participation from university students who love card games. In fictional Huangning City, Hainan Province, Xu Shaohong, a rich young man and member of Huangning University of Technology's tabletop gaming club, also buys the battle equipment for Ruins of Civilization and decides to form a team for the national college league. With the addition of two teammates, Lu Buqing and Wen Ruobing, training gets underway in full swing, with the national championship firmly in their sights!