Broken and humiliated office worker Mark gets a mysterious black card from Everest Group, granting him 500 million yuan to spend legally in 90 days—with 100 million yuan as a reward for success, or total loss for failure. He takes the gamble, buys his exploitative former company to avenge his years of unfair treatment, and steps into a brand-new luxurious life. Amid his drastic life change, he accidentally meets the artist Lena, while mysterious behind-the-scenes forces quietly watch every move he makes.