Su Wan resigned from his job to start a business to help his grandmother with Alzheimer's disease. He led a small team of three people to develop smart elderly care equipment. At a science and technology innovation roadshow, he encountered sharp doubts from Gu Yanchen, a partner of Xingtu Capital, and the project was on the verge of failure. When her grandmother suffered a stroke, she reunited with Gu Yanchen in the hospital and unexpectedly got a second chance for evaluation. Faced with numerous crises such as plagiarism of competing products, interception of the supply chain, smear campaigns, and capital suppression, Su Wan stuck to her original intention, used real data and sincerity to impress Gu Yanchen, and won angel round investment. From tit-for-tat to fighting side by side, the two overcame malicious competition, warehouse destruction, public opinion storms and other difficulties along the way. Not only did Nuanxi Intelligent become a leading company in the domestic elderly care industry, it fulfilled its promise to protect the elderly, but also harvested love that went both ways in the shared adversity. In the warm sunshine of the old Ximen alley, they wrote a warm chapter of entrepreneurship and mutual care.