Lin Hao meets Gu Xiaotong by chance, and the two pass by Lin Hao. The city is brightly lit at night, and neon lights illuminate the streets and alleys. Lin Hao was walking home alone, with headphones in his ears and music echoing lowly. He worked late today and had just finished a marathon of programming work. He is an AI engineer and has a busy job, but he likes this feeling of being busy. Hao and Gu Xiaotong discovered common interests and started dating.