Qi Huan is a croupier in an underground casino. The bet is not money, but life. A mysterious man won everyone's life span for ten years in a row. Qi Huan lost twenty years and became forty years old. He tracks down the mysterious man and discovers that he is a time traveler who uses his stolen lifespan to remain immortal. Qi Huan set up a counter-bet and staked his entire life. After winning, he forced the other party to tell the truth - that the other party was Qi Huan's future son to prevent him from committing suicide.
