In the extreme capitalist city of Ultra Capital, a boy named Won awakens with no memory of his past, only aware of his mysterious power called "Bankruptcy." Due to his ability to bankrupt any money he possesses, he becomes an outcast, unwelcome anywhere. However, he soon encounters individuals who show him kindness, and through these new connections, he begins to uncover the city's hidden injustices. As he navigates trials that challenge his original beliefs, he faces constant tests and threats from a figure known as "Mr. Money," the CEO of the city, who sees Won as a dangerous threat. Will Won be able to recover his lost memories and uncover the truth about the city?