Artist.
Japanese name: むす子, 息子, ムスコ (Musko or Musco)
Pixiv nickname: ヘルメット (Helmet)
Site nane: 髭/La barba
Blog name: 悶絶
https://www.pixiv.net/users/503797
https://www.pixiv.net/stacc/musco2
https://twitter.com/N0N0_mura
https://twitter.com/intent/user?user_id=3022047600
https://sketch.pixiv.net/@musco2
https://www.tinami.com/creator/profile/3221
http://musco.blog.fc2.com
http://musco.web.fc2.com