Jiang Liu, who traveled to the world of martial arts, started out as a gangster with no cultivation. After accidentally obtaining the system, he picked up the "Tiger Fist" boxing manual of the Tiger Gang and started his training. In order to collect money to buy medicine and improve his strength, he entered Anshengtang as a drug store apprentice, unlocked the skills of refining medicine, and later joined the Luoying Gang. He encountered crises in the gang such as the Pan brothers making things difficult and the Black Wind Hall provoking him. He relied on the blessing of the system and his own efforts to continuously break through the realm.