Korean artist.
Name: 닥터펜귄 (Dr PenGwin)
Other names: うしもち (Ushimochi), PenGwin (펜귄), ricecow
Site name: 한마리 펭귄
https://www.pixiv.net/users/1625893
https://www.pixiv.net/stacc/shkim1445
https://twitter.com/_2dk_ksh_1_1
https://twitter.com/ushi_mochi_18
https://twitter.com/intent/user?user_id=133994333
https://twitter.com/intent/user?user_id=826630182840578048
https://ushimochi18.booth.pm
https://ushimochi18.fanbox.cc
https://www.pixiv.net/fanbox/creator/1625893
https://sketch.pixiv.net/@shkim1445
https://blog.naver.com/the45gate
https://odaibako.net/u/ushi_mochi_18
https://twitter.com/Dr_PenGwin