Rogue's Sweet Atonement

As an ordinary office worker, He travels through time by accident and becomes a useless live-in son-in-law. His former self was addicted to drinking and gambling, treated his wife badly, and even conspired with her close friend to seize the family property. After the soul swap, He owns outstanding expertise in mathematics and traditional Chinese medicine. He decides to turn over a completely new leaf. He spares no effort to protect She wholeheartedly. Hidden family conflicts, cruel business schemes and deadly traps set by underground casinos keep emerging one after another. Can He break through all these dangers smoothly? Will She finally let go of all past grievances and accept his sincere love? Can He gain both successful career and happy marriage in the end?