He has been upright and upright in his life, and is regarded by the people as a future wise king, but he time travels through time because of an unexpected exploration. He has no understanding of modern times, and makes a big joke in school. He meets Xiao Leilei under the stone pavilion of the school, and sparks are sparked in the "collision"... However, after all, the person who time travels is not from this era. What should they do with their love? ...