Joy of Life's male protagonist, Fan Xian, traveled from the modern era to the ancient times. He had transmigrated to Qing Kingdom from the modern era and retained memories of the modern era. Although some search results mentioned that Fan Xian had been injected with the memories of the old civilization, this could also be seen as a kind of transmigration. Therefore, it could be confirmed that Fan Xian, the male protagonist of Joy of Life, had transmigrated.

Joy of Life's male lead, Fan Xian, and female lead, Lin Wan 'er, met in the eleventh episode of the TV series. In the previous plot, the two of them had many misunderstandings and mistook each other's identities. Lin Wan 'er thought Fan Xian was Guo Baokun's errand boy, while Fan Xian thought Lin Wan' er was a servant girl of King Jing's manor. However, in the eleventh episode, Fan Xian disguised himself as a famous doctor to treat Lin Wan 'er. The two finally met again and knew each other's true identities.
The male protagonist, Qing Yu Nian, traveled to the Southern Chen Kingdom during the Northern and Southern Dynasties.
Wu Zhu in Joy of Life was a transmigrator. He was a robot that Ye Qingmei had brought over. He had advanced technology that surpassed the world of Joy of Life. His eyes were his greatest weapon, so he had been blindfolded. In the plot, he tried to retrieve his previous memories, but in the end, all his memories were wiped away by the temple. In the end, he followed Fan Xian back to the Central Plains and joined forces with everyone to kill the Qing Emperor. In the end, he recuperated on Dong Mountain.
The male lead of Joy of Life, Fan Xian, liked Lin Wan 'er. They fell in love at first sight and became each other's fiancées. Fan Xian had deep feelings for Lin Wan 'er, which showed his love, righteousness, and compassion.
Joy of Life's male protagonist, Fan Xian, had five wives. Among them, the first wife was Lin Wan 'er. She was the illegitimate daughter of the Qing Prime Minister and the Eldest Princess. Fan Xian fell in love with Lin Wan 'er at first sight. The two of them were connected by a chicken drumstick. Other than that, Fan Xian also had ambiguous relationships with several other girls, including Si Lili, Haitang Duoduo, Zhan Doudou, and Liu Sisi. In the end, Fan Xian married Fan Ruoruo. She was the younger sister of King Jing's son, Li Hongcheng. Fan Ruoruo had initially loved Fan Xian, but in the end, she was betrothed to Li Hongcheng. The two eventually became husband and wife. Therefore, the male protagonist of Joy of Life, Fan Xian, ended up marrying Fan Ruoruo.
In the end, Fan Xian married Lin Wan 'er.
Fan Xian had traveled to ancient times through his soul. In his previous life, his name was Fan Shen, and he was a patient with myalgia gravis. He had been bedridden for a long time. One day, he suddenly woke up to find that he had transmigrated into the body of a newborn baby. He did not explain in detail how Fan Xian had transmigrated. Fan Xian's mother, Ye Qingmei, was also a transmigrator. She used modern technology and culture to change the Qing Kingdom and gave birth to Fan Xian for the Qing Emperor. Fan Xian had transmigrated before. Because his mother was also a modern person, he also had modern thoughts. In general, Fan Xian's method of transmigration was not clearly explained, but his mother, Ye Qingmei, was a transmigrator. Through her influence, Fan Xian also had modern thinking.
Fan Xian had transmigrated to the world of Joy of Life. In his previous life, his name was Fan Shen. He was lying in the hospital because of a terminal illness. When he woke up, he found that he had become a baby. Fan Xian heard the conversation about the Qing Emperor and mistakenly thought he had transmigrated. He did not explain in detail how Fan Xian had transmigrated. Fan Xian's mother, Ye Qingmei, was also a transmigrator. She used modern technology and culture to change the Qing Kingdom and gave birth to Fan Xian for the Qing Emperor. Fan Xian had transmigrated before. Because his mother was also a modern person, he also had modern thoughts. In general, Fan Xian's method of transmigration was not clearly explained, but his mother, Ye Qingmei, was a transmigrator. Through her influence, Fan Xian also had modern thinking.
Joy of Life traveled back to the Southern Chen Kingdom during the Northern and Southern Dynasties.
There was no clear explanation for why Fan Xian had transmigrated in Joy of Life. Fan Xian had transmigrated from the modern world to the Qing Kingdom. After he transmigrated, he retained his memories of the modern world. In his previous life, Fan Xian's name was Fan Shen. He was lying in the hospital with an incurable illness. When he woke up, he found that he had become a baby. After hearing the conversation between Wu Zhu and Chen Pingping about the Qing Emperor, he thought he had transmigrated. Rather than saying that he had transmigrated, it would be better to say that he had slept for thousands of years. After thousands of years, he was young again. Ye Qingmei was Fan Xian's mother and also a transmigrator. She changed the world in the Qing Kingdom and helped Fan Xian's father sit on the Qing Emperor's throne. She also gave birth to Fan Xian for him. Fan Xian's transmigration was related to Ye Qingmei's transmigration, but the specific details were not mentioned. As a result, there was no clear answer as to why Fan Xian had transmigrated.