This is Elden Roc, originally a Dolly Style doll called Satin Moon Princess Lynn. I believe Dolly Style dolls were exclusive to the BIC (Barbie in Chiba) shop, now currently in limbo. For today's S.U.S., she's sporting a trench coat from the Dolly Style wardrobe for 1/6 scale dolls.
The coat was part of a set that includes the green tartan hat and black leggings shown, minus Elden's shoes, which were borrowed from the Style Mantra Eden doll. This ensemble is very very nicely detailed. The only bad thing is that those black leggings do leave stains on the doll if left on for too long.
I would have loved to eventually purchase a few more Dolly Style outfits. They looked very chic, sometimes edgy or with a girl-next-door vibe. Alas, I'm always late for the purchasing, and my main source for it poofed away before I got the chance. Won't go into details about stuff I've read on the doll boards and other blogs. It just saddens me.
Even Elden has felt depressed for wearing the same Dolly Style outfit for so long, with no chance of a wardrobe change in the near future, that she's picked up a new hobby to keep her mind off things....