Female general Xing Heyan was forced to pretend to be her cousin He Rufei when she was young. By chance, she entered the military camp and achieved great success, and was named General Feihong.However, after cousin He Rufei recovered, the two returned to their original positions. In order to keep this secret forever, He Rufei extended a vicious hand to He Yan.

When He Yan woke up again, she found herself back on the training ground again. She vowed to live for herself in this life and take back what she had lost, so she disguised herself as a man again and joined the military camp.However, this time, he met his childhood classmate Xiao Jue, who was cold on the outside and gentle on the inside. They joined forces to fight traitors, help the weak, foreign countries, and protect the country together.