In the reform city "Hujiang City" where steam and gears are intertwined, Chen Yan, a young man from a wealthy family, was originally a playboy, but he was involved in the whirlpool of intrigue due to a love affair. He spent all his money to help his childhood sweetheart Su Wan reach the top as a mechanic, but was betrayed by his alliance with political and business giants. The family went bankrupt and its reputation was ruined. On the verge of death, Chen Yan activated his ancestral pocket watch, which contained a "time slot core" that could preview the next ten seconds, and embarked on a road of wits and revenge. He used precise calculations to fight the conspiracy, used a steam engine to break the situation, and revealed the greater truth behind Su Wan's betrayal between the gears. When love turns into a sharp blade, the former master uses his brain power as his blade and steam as his wings, vowing to tear this city of hypocrisy apart.
