Artist: pen (pen3)

URL http://blog.fc2.com/p/e/n/pen3/
URL https://www.pixiv.net/stacc/pen3
URL https://www.pixiv.net/member.php?id=405
URL https://pawoo.net/web/accounts/15953
URL https://twitter.com/sharp_pen
URL http://pen3.blog73.fc2.com
URL http://pen3.sakura.ne.jp
URL https://pawoo.net/@sharp_pen
Aliases #ペン, sharp_pen, ペン