少女

A black-haired girl tasked with helping guard Hao-Chen. She appears to be no older than 14-15 years old. Always quiet with her head hung low, she keeps a watchful eye on Hao-Chen and avoids any questions she doesn't want to answer. She feels unease about her actions, but follows the directions of the mysterious girl. Their relationship in itself is also a mystery.

Her full name is later revealed in the story to be Huang I-ling and she is the blood-related younger sister of the mysterious girl.