In the 1990s, orphan Zhang Xiaoman grows up in the industrial city of Tiexicheng, earning the title “Son of Tiexicheng” for his loyalty and integrity. Alongside the steady Xia Lei and the brave Yan Xiaodan, he experiences a passionate youth. As economic changes force them to leave their hometown to search for new opportunities, they eventually return, weaving a touching story of unwavering loyalty and finding their way back home.

Two brothers find themselves in a mysterious alien inn where escape seems impossible. Joined by a spirited girl and an alien companion, they team up under the quirky innkeeper to explore the cosmos, forge friendships, and make Inn 42 a renowned destination across the galaxy.