According to legend, during the Western Jin Dynasty in China, Liang Shanbo, a young student, left home to study and met Zhu Yingtai, a student disguised as a man. As soon as they met, they shared the same interests, so they became brothers in Caoqiao and later went to Song Wan Academy. In the academy, the two get along day and night, and their feelings are getting deeper and deeper. Three years later, Yingtai returned to China, and Shanbo sent him for eighteen miles. They said goodbye. Shanbo, instructed by his mistress, came to Zhujiajian to propose marriage with the butterfly jade fan left by Yingtai. After returning home, he was sad and angry, and he couldn't afford to get sick and died. Yingtai was heartbroken to hear that Shanbo died for himself. Soon, the Ma family came to get married, and Yingtai was so angry that she got into a sedan chair. The sedan chair detoured to the tomb of Liang Shanbo, and Yingtai insisted on getting off the sedan chair, weeping and worshiping the dead, and died of excessive grief and was buried in the east side of Shanbo's tomb; It is also said that when worshipping sacrifices, the thunder broke the tomb and Yingtai entered the grave. Liang Zhu became a dancing butterfly.

Butterfly lovers delicately presents a beautiful and earth-shattering love. Born in a wealthy family, Zhu Yingtai resisted the unequal treatment and bondage of women in traditional society and won the opportunity to study and receive education with boys. Then he challenged the age-old concept of "a match made in heaven", fell in love with Liang Shanbo, a civilian child who had been a classmate for three years, and fought for his freedom of marriage. However, in the conservative era, the two were separated. But after all, the love between Liang and Zhu is earth-shattering. They turn into colorful butterflies and dance to the colorful free sky, where flowers are in full bloom.