Jiang Ye encounters Shen Wei, a girl who has suffered a sudden cardiac arrest, at a bus stop and steps in to save her without hesitation, thereby missing his exam. Shen Yanshan, Shen Wei's grandfather, makes a special trip to their home to express his gratitude, solemnly treating Jiang Ye like family. Faced with generous treatment, Jiang Ye does not lose his original intentions, always guarding his kindness, working steadily and moving forward step by step to win recognition. From strangers and misunderstandings to knowing and cherishing each other, he and Shen Wei warm and illuminate each other in daily trivial moments. Two sincere people turn a chance encounter into a two-way journey of happiness.