The secret to the success of all casinos in the world is Sensors - people with a high level of luck. They are united in influential secret organizations - the Guild of Sensors. Arthur Bashkirtsev, a businessman from Perm, is very lucky - he is the only one surviving after a fire in his elite high-rise building. A representative of the Moscow Guild of Sensors draws attention to this amazing fact. And not in vain - after testing it turns out that Arthur has the 4th tsai - the highest level of luck! After Initiation, Bashkirtsev becomes a leading player in the Moscow Guild and finds himself in the secret world of Sensors. At this time, the largest and oldest Guilds of China and Las Vegas begin an irreconcilable struggle.