The Butterfly Lovers (2008)

Zhu Yan Zhi, disguised as a man, seeks to learn martial arts with an elite clan. Once she begins her intense training, Zhu finds herself at odds with her trainer and superior, Liang.

The New Yoshiwara pleasure district, in the twilight years of the Edo Period. Popular prostitute Asagiri will soon be freed from her indentured service. One day at a local festival, she meets young artisan Hanjiro who changes her destiny. Asagiri feels love for the first time in her life, but the history involving Hanjiro's client leads to tragic circumstances.

Zhu Yan Zhi, disguised as a man, seeks to learn martial arts with an elite clan. Once she begins her intense training, Zhu finds herself at odds with her trainer and superior, Liang.

Set in a fictional country called Daeho that does not exist in history or on maps, it is about the love and growth of young mages as they overcome their twisted fates due to a forbidden magic spell known as the "alchemy of souls", which allows souls to switch bodies. It follows the story of an elite assassin named Naksu, whose soul is accidentally trapped inside the weak body of Mu Deok—Jang Uk's servant from a powerful and noble mage family in the country. The young master of the Jang Family, Jang Uk, holds a dark secret about his scandalous birth. He wants the formidable assassin to help change his destiny.

Jang Uk returns from death, and three years later, the story of the mages unfolds anew. Jang Uk becomes a hunter of the soul-shifters when a young woman, a prisoner in her own home, seeks his help to reclaim her freedom.

Even though the plot line is totally different from each other, it's about a girl who disguises herself as a guy for good reasons, not to get the guy.

They are about the same Chinese legend of a tragic love story between a pair of lovers, Liang Shanbo and Zhu Yingtai. Break adds a gay/modern twist.

Both movies are based on two of four epic great novels of Chinese literature.
............................................

They told the same history. You can choose the new version or the old one

Zhu Yan Zhi, disguised as a man, seeks to learn martial arts with an elite clan. Once she begins her intense training, Zhu finds herself at odds with her trainer and superior, Liang.

Zhu Yan Zhi, disguised as a man, seeks to learn martial arts with an elite clan. Once she begins her intense training, Zhu finds herself at odds with her trainer and superior, Liang.