College student Lin Xiaoman takes over the Lin Family Herbal Tea Shop left behind by her grandfather. Zhang Guangfa, the owner of the newly opened viral herbal tea shop across the street, maliciously slashes prices, spreads rumors and smears her reputation, hires people to cause trouble, and secretly sabotages her business. Lin Xiaoman insists on using quality medicinal ingredients and staying true to her principles. She brews tea on the spot to prove her innocence and wins a large number of loyal customers with its genuine taste. Zhang Guangfa cuts corners and deliberately damages her shop, eventually getting his own store shut down by the authorities. As Lin Xiaoman's business flourishes, she launches delivery services, develops new flavors, refuses to raise prices, offers free drinks, and generously helps fellow shopkeepers who come to learn from her. With honesty and kindness, she brings warmth to the entire old street.