Riverford University student Ethan Walker, who comes from a poor background, unexpectedly gains a special billionaire system that allows him to purchase luxury cars, businesses, and various top-tier skills in the real world for only a few cents. When mocked by a wealthy heir, Ethan spends $0.1 to redeem a water-delivery service from campus beauty Claire Monroe, stunning everyone on the spot.
After that, Ethan acquires numerous assets, including sports cars, restaurants, and a talent agency, all at bargain prices. He decisively breaks up with his gold-digging ex-girlfriend and strikes back at business owners who maliciously smear him. As Ethan and Claire grow closer, he presents a billion-dollar watch at his birthday banquet, completely outshining his rival Joel Benton, a wealthy heir competing for Claire's affection.
By chance, Ethan saves a powerful figure in Modun and joins forces with him to establish Starlight Group. To gain connections with the powerful, the Monroe family forces Claire to marry into the Price family, but she resolutely breaks ties with her family. At the bidding banquet, the Price family and the Monroe family publicly humiliate Ethan, only for him to reveal that he is the true controller of Starlight Group. He completely crushes the Price family, intimidates the Monroe family, and ultimately awards the major project to Tom Monroe, starting a billionaire life alongside Claire.
