In Qingping Town, poor scholar Lu Liang and wealthy daughter Qianxi have a lifelong love affair under a peach blossom tree, but Qianqian's family tries to stop them because they dislike being poor and love being rich. Long Kun, a peach blossom boy who has been practicing for a hundred years, fell in love with Sissi. He used his practice for a hundred years to obtain a human form and silently guarded her in front of her window. Qianqian devoted herself to helping Lu Liang go to Beijing to take the exam, and spent all her money to prepare and hire famous teachers. Lu Liang also promised to marry him. However, after becoming the top student in high school, he was attracted by the prime minister. He changed his mind and became greedy for the beauty and power of the prime minister's daughter Xiangxiang, leaving Qianxi behind.
Lu Liang failed to return after the due date, which made Qian Qian worried, so she decided to go to Beijing to find love. The journey was difficult and dangerous, but fortunately Long Kun was with him. Although he had little magic power, he tried his best to save himself from the robbers by turning dead branches into ropes. He cast a spell in front of the pervert to attract the wind to protect him, defended the beast with a shield, and escaped from a dark shop. After arriving in Beijing, Qianqian was coveted by the prime minister and tricked her into the palace. She was almost raped, but Long Kun was seriously injured and rescued her and hid in a ruined temple. After learning that Lu Liang had changed his mind, Qianqian beat the drum to complain, but was chased by the prime minister. She was trapped in the ruined temple and almost burned to death. Fortunately, the immortal rescued Long Kun, and Long Kun gained a thousand years of Taoism and his strength was greatly increased.
Finally, on the wedding day of Lu Liang and Xiang Xiang, Long Kun and Qian Qian came to reveal the Prime Minister's identity as a thousand-year-old fox demon and all his evil deeds. He scolded Lu Liang for being ungrateful and sent the two of them to prison.