kams

Artist.

His Touhou works are well known to NicoNico users for parody-style folklore/fables and ZUN-like art. 'Moriya Step' (Danbooru 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)