This work contains AI-assisted content generation. Unemployed worker Chen Jia receives an inheritance test from his ancestors: within thirty days, he must purely experience and spend one billion, and upon completion he can inherit thirty billion in inheritance. While starting a hilarious array of flamboyant money-wasting tasks, he secretly nurses a crush on his cold roommate goddess He Hanbing. However, He Hanbing is completely unaware, mistakenly thinking he is suffering from unemployment frustration and impulsively squandering money. Layered with continuous provocations and harassment from rich heir Lin Hao, this unfolds a story of constant misunderstandings, intertwined sweet smiles, and a counter-attacking pursuit of love.