Among the residents of Portia are seven brothers by the name of Hulu.
They are all about the same height and weight with birthdays spread over only two days starting mid Autumn. Each brother wears a different color shirt, each shirt corresponds to a different color of the rainbow.
The only brother that can't be romanced is Dawa and all seven can be sparred with, although Qiwa (6) and Wuwa (3) are much lower level than the other five brothers, who each have a level of 22.
They are based on popular Chinese animation Calabash Brothers (葫蘆兄弟)