What is the clothing mod(s) used for Onean's base outfit?

[humrh360]

I posted this earlier under General Discussions, but realized I'd probably get better luck under this category. It just occurred to me that there isn't really any listed source(s) to Onean's main outfit, and now the curiosity is eating me. Any attempt at searching has led me nowhere. Looking at the parts in Outfit Studio, I can see a few Chinese-looking part names and maybe some JP ones, but looking any of those up also got me no results. Does anyone got ideas of where her outfit comes from?