Si Hao

Fortunately, the chitterfiends were below Tier 1. Otherwise, given the boy's physique, he might not have survived the chase.

After confirming that there were no other alien beasts nearby, Nanzhi brought him into the RV. There, she treated his wounds, gave him food, and provided a new set of clothes.

Curious about how the boy ended up alone, she asked him about his story. Eventually, she learned that they had been on their way to the city's base.

The boy's name was Si Hao, and his father's name was Si Lei. His mother had left them long before the apocalypse began. Si Hao's was searching for his half-brother, whom they hadn't seen in three years. Along the way, they encountered a group of thugs who chased them relentlessly. 

In the middle their car broke down and they ended up in this private compound.