This one has been bugging me recently, this is the top of Mononobe no Futo's default costume as well as part of some of Inubashiri Momiji's many costumes (say, post #1065438 and post #452161 as variants of default costume, post #1004542 and post #570534 as alternate costumes).
I need help for this one as this has already much more posts than hifu due to Futo having more posts than any new character from Ten Desires.
It and hifu should imply japanese_clothes as well.
Updated by jxh2154