World view setting
Time-travel mechanism: Modern social animal Chen Tianhao (30 years old) accidentally time-travels to Hong Kong in 1980, and is bound to the "Hero Growth System". He can obtain skills/resources by completing the tasks in the Hong Kong movie's title scene.
Special setting: The world is a fusion universe of Hong Kong movies ("Infernal Affairs", "Underworld", "God of Gamblers", etc. Coexist), and the fate of key characters can be changed by the intervention of the protagonist