The Chauffeur Tycoon's Revenge

Gideon Chen built a business empire before going incognito to work as a designated driver. He accidentally catches his daughter-in-law cheating. At a wedding banquet, he is humiliated for his lowly job as a driver. No one knows he is actually a business tycoon, until he reveals his true identity and delivers severe punishment to those who humiliated him and the cheaters.