What is the relationship between Korean Hanbok and Japanese kimono and China?

Hanbok, kimono and Hanbok are all different:

Korean Hanbok is a miniature version of China Hanbok women's dress. The difference is that Hanbok is generally "pyramid-shaped": the skirt is enlarged and the coat is short. At first glance, it looks like the chest-length blouse and skirt in China in the Tang Dynasty, but these are two different things.

Japanese kimono, women's clothing and men's clothing are similar to China's deep robes, but compared with Hanfu, they are also different from Hanfu's straight and crooked robes.

If we must talk about the relationship between Hanbok and Kimono and China, I think they should learn from and imitate from the history of China for thousands of years. As for Hanbok, there are Koreans in China, and their clothes are similar to Hanbok. For kimono, you should know Xu Fu who brought China's culture to Japan. The above is my personal opinion.