Jiang Chen is an ordinary food delivery guy who, after experiencing his girlfriend's betrayal and setbacks in his career, unexpectedly inherits a large fortune. It turns out the elderly man he had taken care of for three years was a billionaire. After his passing, the entire estate was left to Jiang Chen. However, inheriting this fortune isn’t easy. The wealthy man set a challenge: Jiang Chen must spend three billion within three months! As Jiang Chen accepts the challenge, he begins finding ways to spend the money, even managing to humiliate his ex-girlfriend and a male antagonist in the process. While resting at a hotel, Jiang Chen stumbles upon a live stream by his childhood friend, Yang Xue, who now works at an orphanage. After catching up, the two are disrupted by some troublemakers and part on bad terms. Afterward, Jiang Chen is captured by the gang leader due to an old debt caused by the male antagonist. Despite his preparations, the lawyer fails to show up, and it's only with Yang Xue's help that he manages to escape. Once the antagonist is arrested, his family seeks revenge, and Jiang Chen realizes that everyone around him is a spy— even his lawyer betrayed him. Though Jiang Chen fights back, he ultimately loses to the Liu family. After a fierce struggle, he ends up penniless, realizing that true wealth lies in trust and relationships. Determined to protect the old billionaire's legacy, Jiang Chen begins to rebuild. In a chance encounter, he helps Yang Xue, confronting her ex in the process. His intelligence and courage earn the respect of the billionaire's friends, granting him the opportunity to revive the family fortune. He quickly finds projects, raises capital, and starts recruiting talent. Ultimately, Jiang Chen defeats Liu Ao in a fierce business competition and rises once again as a top tycoon.