(Time travel + no heroine + history + Qin Dynasty + Han Dynasty + ancient times)
Shen Yan: Traveling through time and becoming a passerby in the Qin Dynasty, I picked up a prince in the wilderness at the beginning.
Fusu: I originally wanted to be a good son, but I was led astray by a passerby.
No CP. The protagonist is engaged in career throughout the whole process and has no emotional line. The protagonist is a modern detective who travels through the Qin Dynasty and relies on observation and logical analysis to solve the problem.
