All throughout the ride to the Capital, Li Qiang spent his free time in reading and meditating. While he gained a lot of knowledge from the previous Li Qiang's memory, he was aware that this is not enough. He knew that the previous Li Qiang did not have the interest to study. Because of this, he is quite lacking not just in the brains department but also in the general knowledge in this world.
While Li Qiang is frustrated by this fact, he knew that he could do nothing but swallow his emotions and continue to study. Because of this, he devoured the knowledge from the books in a matter of days.
History, magic, potions, spells, and healing.
The more he knew about the world, the more he realized how complicated this place is. He felt small, unaware, ignorant. However, instead of getting discouraged, this self-awareness made him determined to know more. Moreover, he had also discovered some impurities in his body. From his research, this impurities was caused by poison.
