C790 Legend Has It That

"However, Emperor Xuanyuan is a human being after all. He has a vast knowledge of the Wordless Heavenly Book when he is poor. He is not someone that can be learned by a single person. At that time, due to the lack of time, he found a few people he trusted the most and asked them to study the Heavenly Book's knowledge separately."

"For example, he learned the art of war, and his wife, Leizu