The History of the Three Kingdoms 9 will always point out the witchcraft in the art of war when the military commanders are newly built, and the available value of the art of war will change from 35P to 99P, so that you can learn all the art of war (and the whole art of war is "proficient" with a proficiency of 900+).

The Three Kingdoms 8 is related to the dialogue and trust with Cai Yan in Chang 'an. After talking to her constantly, she will teach you the stunt of internal affairs.

Looking for Sima Wei in Jingzhou City is related to trust. After talking with him constantly, he will teach you the stunts of the plan.

Looking for Huatuo in Yangzhou is related to trust. Talk to him constantly, and he will teach you a green book.

Looking for pipes in the plain is related to trust. After talking with him constantly, he will teach you astronomy.

Looking for Zuo Ci all over the country is related to trust. After talking with him constantly, he will teach you a fairy.