But the buns seen in normal department stores and convenience stores are all Japanese buns with sweet skin.
Especially with salty stuffing like pork in it, I always feel particularly twisted.
There are also many sweet-skinned steamed buns in Yokohama, OTZ.
As a snack, Japanese-style "steamed bread" has no stuffing, but it is completely different from domestic steamed bread. It is a dessert and can never be the staple food of OTZ.
As for the big white steamed bread without stuffing in northern China, it is really rare in Japan itself.
In Tokyo, I have only seen steamed buns (not sweet skins) in the north of China and steamed buns in the northeast of Ikebukuro, China.
It is said that there are authentic Goubuli buns in Zhonghua Street in Kobe, but I have never been there. I wonder if it's true.