Yan Yu is the female protagonist who travels with Chen Dian. She is intelligent, supportive, and observant. Initially disoriented in the strange world, she quickly adapts and assists in decision‑making, from analyzing ruins and deciphering symbols to helping plan the village’s defense. She works closely with Yingxiu to organize the construction team and record manpower. Her emotional support is vital for Chen Dian, and she participates actively in both intellectual and practical tasks, showing resilience and care.
