Su Nian'er is a girl from an ordinary family who works hard to make her way in a bustling city. Sweet and adorable, she is gentle, kind, optimistic, and cheerful. Lu Tingxiao, meanwhile, is the heir to a wealthy family. With deep-set eyes, a high nose, and a tall, well-built frame, he is decisive and formidable in business. Though these two seem to have nothing in common, sparks of love fly between them. Lu Tingxiao dotes on Su Nian'er, fiercely defends her, and loves her with unwavering devotion.
Their relationship, however, does not run smoothly. An Yue, a wealthy heiress with striking features and a voluptuous figure, likes Lu Tingxiao and often creates little problems for the couple. Lin Yuze, a gentle and refined young man with delicate features and glasses, is Su Nian'er's friend. He quietly watches over her and is always there to help when she runs into trouble. Then there is the villain Xiao He, a devious schemer whose calculating eyes and cold smirk reveal his nature. As Lu Tingxiao's business rival, he envies him and uses every means at his disposal to sabotage both his career and his relationship. But Lu Tingxiao steadfastly protects Su Nian'er, and as they navigate challenges and sweet moments together, they write their own story of a wealthy heir fiercely standing up for his beloved. This is a heartwarming, indulgently sweet urban romance.