Hong Kong film: The Big Boss, Four Heavenly Kings at the Start

Huo Tianyao travels back to the world of 1980s Hong Kong films. His undercover identity is exposed, and he is abandoned by his superior. Under the pursuit of both the underworld and the police, he is forced to flee to Siam. Three years later, Ba Bi dies, and Tung Sing is in turmoil.
Huo Tianyao makes a powerful comeback to Dongxing! He awakens the "Reign Supreme System" and acquires the Four Heavenly Kings of Kokubun Prison! East Warehouse Heavenly King—Taishan, South Warehouse Heavenly King—Bai Shen, West Warehouse Heavenly King: Huang Quan, North Warehouse Heavenly King: Narumi!
"Three years, do you know how I've spent these three years?" "What belongs to me, Huo Tianyao, I must..."