After the sudden death of medical student Si Li'an, he traveled into the interstellar beast world and became an F-level useless guide. While others used their mental power to calm the sentinels, she used a scalpel to percuss and locate the spine, stimulate glands with acupuncture, and dissect exotic animals to prepare medicine. Later, the SSS-level sentry knelt down and begged for guidance, and she asked her to wait in line to register. The interstellar pirate king kidnapped her to be his personal doctor and sent her back three days later, along with a shipload of supplies. The whole world said she was a waste, but she wiped the scalpel without raising her head: "I'm just a doctor."
