The eldest prince of Dongyi was a character in Joy of Life. The Great Prince's mother was a female slave in Dongyi. Because of his impure bloodline, he lost the right to fight for the throne. At the end of the plot, the First Prince remained in Dongyi, holding an army, alive, and with a certain amount of power. His mother had taken care of the Qing Emperor when he was in danger and returned to Jingdou. She had been conferred the title of Noble Ning. The First Prince was described as a combative character in the movie. He spent many years guarding the border and was regarded as a hero and idol by the people. The search results did not provide any clear information about the First Prince's ending or character development.

The Eldest Prince went to Dongyi and became the City Lord of Dongyi.
The Great Prince went to Dongyi. The eldest prince was a character in Joy of Life. His mother was a female slave in Dongyi. Because the First Prince's bloodline was not pure, he lost the right to fight for the throne. However, at the end of the plot, the Great Prince remained in Dongyi, holding an army, alive, and holding a certain amount of power. His mother had taken care of the Qing Emperor when he was in danger, so she was conferred the title of Noble Ning. The Great Prince was stationed in Dongyi and no longer asked about worldly affairs. Thus, the Eldest Prince going to Dongyi was his end.
In the plot, the First Prince went to Dongyi.
Dongyi Town was a tourist town in Rizhao City of Shandong Province, located 200 meters west of Wanpingkou Gate 4 in the middle of Bihai Road in the Donggang District of Rizhao City. This town was known as the nearest seaside tourist town in China, integrating folk culture and leisure sightseeing. It covered an area of about 245 acres and a building area of about 105,000 square meters. It was composed of four islands, namely the fishing culture theme island, the folk culture experience island, the exotic culture island, and the leisure and entertainment sightseeing island. There were various attractions and special activities in the town, such as the tourist distribution service center of the fishing culture theme island, the theme hotel, the fisherman experience store, the fisherman seaweed house, and the shopping street. In addition, there were also Sea World Park, Wanpingkou Golden Sand Beach, Forest Park, and swimming pools nearby. In terms of transportation, one could take bus No. 32, No. 33, and No. 1 to reach Dongyi Town.
Dongyi Town was called Dongyi because its construction was based on the unique ancient civilization ruins in Rizhao City and its surrounding areas-Dongyi culture. Dongyi culture was a tribal culture in ancient China, located in the Shandong Peninsula. Therefore, with Dongyi culture as the background, Dongyi Town perfectly integrated the traditional architecture of the north and the folk courtyard of the fisherman's family with tourism and vacation, becoming a seaside tourist town that integrated folk experience and leisure sightseeing.
Dongyi was not an independent country, but a port city. It was located in the northern part of Shandong Province and might include a part of the Korean Peninsula. Dongyi was a prosperous place. There was no king, only a city lord. It was known as the largest city in the world and occupied a large area. There was no clear information about the specific country that Dongyi belonged to.
The last city lord of Dongyi was Fan Xian. The reason he became the City Lord was because he was Ye Qingmei's son, and half of Dongyi's wealth was created by Ye Qingmei when she was young. In addition, Fan Xian had thoughts of rebellion against the Qing Emperor and planned to make Dongyi his base to ensure the independence of the city.
There was no specific information about the capital of Dongyi. Therefore, he could not provide an accurate answer.
Dongyi referred to a port city located in the northern part of Shandong Province and the Korean Peninsula.
In Joy of Life, a series of negotiations took place in Dongyi. Nan Qing and Northern Qi both sent envoys to Dongyi to try to get it to submit. During the negotiations, Fan Xian, who had been sent by the Qing Kingdom, and the little Emperor of Northern Qi had a story of their old love rekindling in the Sigu Sword Hut. In the end, Dongyi submitted to the Qing Kingdom in name. However, the details and results of the negotiations were not mentioned in the search results provided. Therefore, the details of the negotiations in Dongyi in Joy of Life were currently unknown.