In episode 5 you can see Shen Jin's determination. In this episode, General Chu asked the lady for a divorce, but she didn't accept it, so he went to the camp where the general trained his soldiers. She started training like all the other soldiers only that she was the only girl in the group. The general tried to facilitate her in some way, but she, out of her determination, refused any help. In the end you can be seen that the general still cares a lot about Shen Jin also because he wants to protect her.