In the late Northern Song Dynasty, war was raging, and a young man accidentally traveled through time. He met Su Shi in his later years, worked with Han Shizhong, and even taught Gao Qiu how to offside. Of course, he also stood before millions of people and protected the people of the Song Dynasty...
(Note: This book is not systematic, harem-like, or brainless, so please proceed with caution.)