Artist.
Japanese name: ใใใ (Yamori)
The other names: ใใ (Yamo), ใใใใใใ(Yamoyamoshii) or "ym"
Circle name: ใใใฎใใ (the other members: Inumoto and Pan_(miku))
(She has some other names/accounts as a cosplayer. These are not related to danbooru though.)