They may or may not be another Touhou character.

which 2hu

I feel sort of awkward admitting it

but its totally another manga-only character.

aw, was hoping it was sakuya

Its Kosuzu Motoori from Touhou Suzunaan ~ Forbidden Scrollery.

I'm probably going to work on role-playing with this character around Bakerstreet and a few other places to get a feel for her before I app her in anything.

Hopefully to dodge any of the bumps I hit with playing Kasen/Katherine.