C178 Midnight red waistcoat

Lao He originally had a wife, and was much younger than himself. He also had a son called He Qiu, who was originally a freshman. However, while he was still in his first year of college, he somehow died.

Originally, the school said that the child hanged himself in the dormitory because of learning stress.

However, Lao He did not think so, so he continued to investigate