On a rainy September night in Bei'an City, college student Su Zhao, who was busy until one o'clock in the morning for a mathematical modeling competition, met a strange man.
Many years later, Su Zhao asked Jiang Yunting next to him: "Why did you ask me to borrow an umbrella at that time?"
Jiang Yunting took off his glasses, looked sideways at Su Zhao, and then smiled lightly: "Because..."
Purpose: focus on a truth