At work, Shen Yi is a dependable technical team leader who can handle any challenge. But at home, he treats every expense with painstaking caution. As soon as his salary arrives, every penny is allocated according to the usual household rules, leaving him hesitating for ages even over a bowl of hot porridge. Until one day, by chance, he discovers another set of household accounts. The inexplicable figures hit him like a bucket of cold water, jolting him out of his silence. He decides to establish new rules for his own life, but the people around him think he's just throwing a tantrum. A thirty-day countdown begins. Old relationships start to unravel, while new opportunities draw near. Can Shen Yi take control of his life again? And who will be the first to panic?