https://www.pixiv.net/users/4743673
https://www.pixiv.net/users/17051903
https://www.pixiv.net/stacc/pal_plus
https://www.pixiv.net/stacc/s_pal
https://twitter.com/STUDIO_PAL
https://twitter.com/koto_nanno
https://twitter.com/pal_plus
https://twitter.com/intent/user?user_id=1425002190
https://twitter.com/intent/user?user_id=4848629630
https://twitter.com/intent/user?user_id=1020297016352444417
https://studio-pal.fanbox.cc
https://sketch.pixiv.net/@s_pal
http://www.dlsite.com/ecchi-eng/circle/profile/=/maker_id/RG03230.html
http://www.dlsite.com/maniax/circle/profile/=/maker_id/RG03230.html
http://doujinshi.mugimugi.org/browse/author/1672/Nanno-Koto/