Artist. Uses "…のやつ" in the titles his pixiv posts.
Nickname: ルッチーフ ("Ruch F" or Rucchiifu)
https://www.pixiv.net/users/11565305
https://www.pixiv.net/stacc/lefthands
https://twitter.com/r_nohito
https://twitter.com/ruch_f
https://twitter.com/intent/user?user_id=2742615853
https://twitter.com/intent/user?user_id=795975249057583104
https://www.nicovideo.jp/user/42178275
https://ruch-f.fanbox.cc
https://www.pixiv.net/fanbox/creator/11565305
https://sketch.pixiv.net/@lefthands
https://seiga.nicovideo.jp/user/illust/42178275
https://11565305.fanbox.cc