The young master of the Gu family, a thirteen or fourteen-year-old boy with a thin frame. He is the illegitimate son of Mr. Gu (Gu Yi) who was not publicly disclosed. He attends an international middle school and wears a well-tailored Western-style uniform. He is an excellent student, having scored a hundred on his recent report card. In his previous life, he lived to age seventeen before jumping off a building in 2024. He was severely bullied and subjected to cold violence by the original owner of Yu Lan's body, once being locked in a cabinet for a whole day and night, which forced him to move out and live at school. He has been reborn back to May 31, 2020, four years before his death. He is quiet, keeps his head down, and hides deep fear and disgust toward his stepmother. His appearance does not resemble Mr. Gu, suggesting he took after an unknown mother.
