Artist, [[NicoNico]] video creator, best known for the artist's [[Touhou]] video series: "Nise-Koumakyou":http://dic.nicovideo.jp/id/4806669

His fan-nickname, 友達が少ない人 (lit. "a person who doesn't have many friends") came from [[Rumia]]'s quote in "one of his videos:":http://www.nicovideo.jp/watch/sm12798059 ”...Is that so? You have no other friends?”

Artist name: JACK
Fan-nicknames: 友達が少ない人 (Tomodachi ga Sukunai Hito) or メタルマックスの人 ([[Metal Max]] no Hito)
jack (wkm74959)