The protagonist, a transmigrator who wakes up in the body of a malnourished teenage boy. He possesses a special ability that allows him to see information about objects and people when he focuses on them. After recovering from a severe illness, he becomes the sole caretaker of his younger sister, Xiao Yan. He is resourceful, using his past-life fishing knowledge to make a simple fishing rod and catch fish to feed them. He plans to learn medical skills from Old Doctor Chen and improve their living conditions.
