Lu Ciyan is recognized in the industry as an "obsessive-compulsive genius" and the founder of a top architectural firm. His life motto is to have everything under control. Until he met Shen Yanqing, the bartender who was filling in for his friend at the bar - this man didn't use measuring cups when making drinks, and he didn't use a ruler when sketching. His smile was like the summer sea breeze, but he hit his aesthetic mark every time.
Lu Ciyan believes that Shen Yanqing is the biggest "variable" in his career and must stay away. But when Shen Yanqing accidentally became his roommate, he found that he was gradually addicted to this sense of loss of control - Shen Yanqing would cook a bowl of poor-looking Yangchun noodles when he stayed up late, and would forget to collect clothes on rainy days but remember to help him cover the jacaranda in the yard.
Two men, one lives his life as a precise drawing, and the other lives his life as an impromptu cocktail. When rationality meets randomness, they discover that some things, the more they want to be controllable, the more they are bound to get out of control.