Artist.

His [[Touhou]] works are well known to [[NicoNico]] users for parody-style folklore/fables and [[zun (style)|ZUN-like art]]. 'Moriya Step' (post #670248) originates from his video.

Artist name: kamS (かむす)
Site name: kam'S
Real name: 武川 克巳 (Mukawa Katsumi) (He never uses his real name on the internet)
kams