According to the information provided, I recommend the following novels to you: "The Legend of Qin": This novel tells the story of the protagonist accidentally transmigrating to the world of the Legend of Qin, but 18 years earlier than the scheduled time, causing him to encounter a series of difficulties and challenges. There will also be characters like Yue 'er, Flame Concubine, and Eastern Emperor Taiyi, which will definitely satisfy your needs for time-space transmigration. I hope you like this fairy's recommendation. Muah ~😗