Former e-sports provincial runner-up Wang Bin fell into confusion and rebellion after his family's fortunes declined. Sent to an auto repair shop as an apprentice, amidst grease and strict rules, under his master's guidance and the tug of familial affection, he ground away his sharp edges. Resisting temptations and confronting conspiracies, he stepped by step transformed from a thorny apprentice into a shop manager capable of standing on his own. Fixing cars is also fixing the heart; the lost youth used his craft to rewrite a life belonging to himself.