Xu Junsen
O is a senior inspector of the A Team. He is highly intelligent, has a strong sense of justice, is agile, and focuses on intuition when doing things.
Ma Yingsi
The sergeant of the Criminal Intelligence Division is gentle and considerate, thoughtful, values principles, and is loyal to feelings.
Shen Weili
O remembers the senior inspector of Team B, who is thoughtful, confident, mature and steady, and can distinguish between public and private matters.
Tang Guanfeng
A professor of biology, calm, wise, gentle, knowledgeable, and absolutely rational.
