What country is this dress from? Manchu or Han nationality?

Robes were worn by people in the Qing Dynasty, mostly Han people. Influenced by shaving and changing clothes, the men's clothes of Qi people are mostly split between their legs, while the clothes of ordinary people are mostly split before and after. Moreover, not all Han people wear collared clothes, and Han people are of different nationalities. For example, in Wuxian County, Taihu Lake in the south of the Yangtze River, the older generation of women still retain the water town costumes of 3,000 years ago, and the neckline is similar to Manchu robes, which is different from traditional Hanfu. Moreover, most necklines in ethnic minority areas in the south of the Yangtze River are like that. It is necessary to distinguish the relationship between the flag-bearer in Qing Dynasty and Han and Manchu. The standard-bearers are aristocrats of Han and Manchu, while the people are civilians such as Han and Manchu.