Completing Story Mode stages for this kingdom will allow you to unlock characters for play in Free Mode. When a character appears as playable in a Story Mode stage, they will be unlocked in Free Mode after you clear that stage. Please note that you don't actually have to use that character to unlock them.

Character	How to unlock
Deng Ai	Complete Stage 6 - Battle of Mt. Tielong.
Guo Huai	Complete any one of the following: Stage 4X Xiahou Ba's Journey, Stage 5X Battle of New Hefei Castle, Stage 7 Guanqiu Jian and Wen Qin's Rebellion.
Jia Chong	Complete Stage 3 - Battle of Mt. Xingshi.
Wang Yuanji	Complete Stage 2 - Battle of Xiangyang.
Wen Yang	Complete Stage 12 (Historical) - Battle of Jiange or Stage 11 (Hypothetical) - Defend Chengdu.
Xiahou Ba	In Stage 4X - Xiahou Ba's Journey, defeat Jiang Wei before he meets up with Xiahou Ba, and then complete Stage 5 - East Gates Battle.
Zhong Hui	Complete Stage 6 - Battle of Mt. Tielong.
Zhuge Dan	Complete Stage 5 - East Gates Battle.