In modern Blue Star, martial arts have been resurrected for half a century. Warriors are no longer secret legends, but a public special group. The martial arts system is integrated into the secular world: the official martial arts administration is established to control the order of martial artists, large companies and wealthy families support martial artists, and private martial arts halls are blooming everywhere. However, high-end martial arts resources and top-level techniques are firmly monopolized by the upper class, and ordinary people at the bottom can only have superficial contact with them throughout their lives, and do not even have the qualifications to get started. The city is running as normal, and life in the online car-hailing, food delivery, workplace and other markets continues as usual, but there is an undercurrent, and the game between warriors quietly permeates all walks of life.