The Fallen God of Gambling

A legendary gambler defeated a rival in a championship tournament, but his wife was killed in a car crash orchestrated by the loser. He fell into alcoholism and was rescued by a woman who brought him to her family's estate, where he worked as a handyman. When a powerful family tried to seize the estate, he repeatedly stepped in to save them, and romance grew between him and the woman. Later, he discovered his wife's death was the rival's doing. To protect the woman and avenge his wife, he challenged the rival to a final showdown. He won, fulfilled his vendetta, and ended up with the woman he loved.