The Beautiful CEO's Bodyguard

A young country ruffian becomes the betrothed of a beautiful CEO because of an arranged marriage his father made when he was a child. A man of honor, he is also dragged into the battles between powerful factions, and trouble just keeps coming... But he has his family's ancestral martial arts manual, Dragon Subduing Art. He fears no ancient martial arts clan, takes first place at the martial arts tournament, and repeatedly uncovers treasures while avenging his father.