Artist, musician, vocaloid song producer.
He was the main personality of this finished internet radio broadcast: ”Gensou-Iri Radio”
Nickname (mainly used as a musician): 相馬 (Souma)
Pixiv nickname: ordures
Vocaloid songwriter name: そうまP (Souma-P)
Radio personality name: 酢飯 (Sumeshi)
Circle name: ordures
He is also a member of these circles/groups: "kanival", "街角麻婆豆" and "こなぐすり"