This drama tells the story that Xie Xiang, who joined the army on behalf of his brother, went to Wujiangtang in the army to study and train in a hidden capacity, and became classmates with Gu, a bohemian rich boy, and Shen Junshan, who was sensible and steady. Together, he broke his opponent's tricks, gained love, realized his ideal of loving the motherland, and sought for his life belief.

Xie Xiang, a kind and just beautiful girl, joined the army on behalf of her brother and went to study in Wujiangtang of the Army for secret training. She became a classmate with a bohemian rich aunt and a rational and steady Shen Junshan, and gradually developed into a teammate who fought side by side.

Under the harsh and cruel training system in the military academy, Xie Xiang not only tries to hide the secret of dressing up as a woman, but also overcomes many troubles as a woman in military camp life. More importantly, she must overcome her weak physical fitness, conscientiously complete every exercise in the military school and graduate smoothly.

In this process, Xie Xiang and his classmates experienced a series of big events, which also triggered a series of stories of dumbfounding. Finally, thanks to his efforts, Xie Xiang not only achieved excellent exam results, but also won the respect of the coach. It also captured the hearts of two outstanding boys.

Later, the Japanese army sent troops to the Northeast, and Jin, who admired Shen Junshan, came back from abroad and became the president of the Japanese Chamber of Commerce. A series of tricks and traps followed. With the support of his children, Xie Xiang struggled with the Japanese, gradually grew up in blood shed, shattered Jin's intrigues, and then came together with Gu.

Xie Xiang: Tell it to the judge. Gu He always fights. After seeing the truth about Xie Xiang, Gu Yanji chose to help her and let her stay in the military camp. I practiced hiding my identity in a military school and thought I was Gu's brother. Unexpectedly, I can't extricate myself. Finally, Xie Xiang and Gu came together and grew up together.

Gu yanframe: a bohemian rich boy, rushed to the military camp and accepted strict practice. However, since he was a child, he was spoiled and could not accept practice smoothly. He makes some troubles from time to time, which makes everyone laugh and cry.

Xie Xiang, who joined the army with his brother, became friends, but at first he didn't know he was a girl. Later, something happened and when he learned the secret, he fell in love with her out of control.