Investor Shen Peihua conceals the true identity of a capital tycoon, transforming into a cleaner to join Yiban Technology founded by prospective son-in-law Gu Chengze, with employee ID 0712. Shedding her halo to root herself in the company's grassroots, she witnesses firsthand the real internal conditions of the enterprise, while also having to handle the storms continuously brought by business rivals. In the trivial and busy cleaning daily life, she slowly unties the estrangement and misunderstanding accumulated for over twenty years between herself and her daughter Su Nian. Relying not on capital power, she experiences workplace warmth and coldness from the perspective of an ordinary worker. Everyone rolled into the storms completes their respective transformation and growth amidst this series of changes.