Once upon a time there lived a girl, her name is Hua Mulan. She has very strong chi, but it is seen by the villagers as something that Hua Mulan should not have, because only a man deserves to have strong chi, so Hua Mulan is ostracized and considered dishonorable by the villagers.

As time goes by, Hua Mulan has become an adult woman who has to hide her chi power by not doing any self-defense in front of the villagers. As a child in the family she also tried to restore the honor of his family by getting married. But the arranged matchmaking still failed.

On the other hand the northern region that belongs to the kingdom has been attacked by a group of criminals with the help of magicians. The attack had an impact on the trading system that would be the end for the kingdom. So the Emperor gave the order to create an army to fight the group of criminals. The emperor ordered each family to deposit at least one male to train into the army.

In the midst of the failure of Mulan's matchmaking, several soldiers sent by the emperor came to convey the Emperor's order that each family must deposit at least one man to be trained as a strong army to fight against a group of criminals.

The Emperor's order became a golden opportunity to restore honor to the Mulan family, but in the Mulan family there was no man other than his father who was old and unable to fight, but his father still decided to leave.

Hua Mulan's love for her father made her take action to run away from home to replace her father on the night before his father's departure. Hua Mulan went disguised as a man wearing armor and her father's sword disguised as a man on horseback leaving her village for the troop training ground.

Hua Mulan's struggle to succeed her father through all the training to become a strong force is said to be difficult. Not only that, she has to endure longing for her family and also tries to hide her identity as a woman in a squad training where the members are all male.

Mulan's attempt to hide her identity starts with her name Hua Mulan to Hua Jun, then she tries to wake up early and sleep late until she doesn't shower. Over time Mulan was able to undergo troop training very well and also made some friends. However, Mulan accidentally displayed her chi power in front of Commander Tung during spear practice with Honghui.

Commander Tung, who is attracted to Mulan's unintentionally shown chi power, makes him summon Mulan to meet him and says Mulan should not hide the strong chi power that is within her, so every night Mulan will practice alone by the lake to develop her chi power.