Ye Chen, a college student from the Department of Physics, traveled back to the Zhenguan period and became a helper at a teahouse in Chang'an West City. He found that the Tang Dynasty was a bit strange - the Qintian Supervisor could predict the weather by observing the stars at night, and the craftsmen of the Ministry of Industry used calculations to calculate the construction of palaces, and his modern knowledge became a "wonderful skill" here. Until one day, a guest came to the teahouse who always frowned.
