After being dumped by his gold-digger girlfriend, Skye Lawson, ordinary worker Evan Mercer gains the Regret Tycoon System, unlocking unlimited wealth powered by the regret of others. Using the alias Your Bro Is Flat Broke, he shocks the internet by spending millions on livestreams, turning the tables on vain women who take him for granted. As Evan exposes hypocrisy and manipulates his way to ultimate wealth, he must juggle his growing fortune, complex romances, and his own moral dilemmas. Will revenge lead him to success or destroy him in the process?