Iron will and steadfastness

Near thirty, Lü Zhengzhi lives a frugal life with his grandfather at a scrapyard, yearning for a life filled with luxury and indulgence. The Ding Sheng Group wants to develop a new commercial area and has targeted the land of the scrapyard, offering a high price to purchase it. Lü Zhengzhi could have lived a good life, but he faces stubborn opposition from his grandfather. The commercial project will be shelved, and the intermediary Fang Desheng, seeking profit, uses dirty tricks to force Lü's grandfather, who has eye disease, to sign a land sale contract. In order to protect his grandfather's scrapyard, Lü Zhengzhi reluctantly embarks on a journey to seek help, bringing a token from his grandfather and a letter to find his grandfather's old friend, Qi Dafeng. However, he encounters obstacles early on, and unfortunately, during a mishap in a public bath, he falls with a mysterious Mr. D, sustaining a head injury that causes temporary amnesia. Coincidentally, they had previously swapped their locker keys, and when Lü Zhengzhi wakes up, he unknowingly dons Mr. D's clothes and leaves the hospital in a suit carrying a silver briefcase, mistakenly swapping identities with Mr. D. At the hospital entrance, he meets Li Xiaolin, a woman he had previously helped, but unfortunately does not recognize her. After learning he has amnesia, Li Xiaolin leaves her contact information and offers to help him regain his memory. Subsequently, Lü Zhengzhi develops feelings for the hardworking single mother, Li Xiaolin, and helps take care of her son, Xiao Bao, who has leukemia, leading to an blossoming romance. However, their good fortune is short-lived as Lü Zhengzhi, while enjoying the life of the wealthy, becomes embroiled in the power struggle of several malicious forces.