Go Back to Ancient Times and Be a Gentleman

A college student in the Chinese Department ran into the time tunnel because of a 5,000-meter long-distance run in a sports meeting, returned to ancient times, and became a glorious teacher. A series of unbearable stories happened with his students, wife, father-in-law, Zhang Wuji, Zhu Yuanzhang, etc... Fight talented people, fight genius doctors, teach when you have nothing to do, deceive beautiful women, be lustful and wet, do the right thing, and live freely in the world...