https://www.pixiv.net/users/18987642
https://www.pixiv.net/stacc/kohsaka_novak
https://twitter.com/kohsaka_novak
https://twitter.com/intent/user?user_id=709050000060211200
https://novak.fanbox.cc
https://sketch.pixiv.net/@kohsaka_novak
https://www.melonbooks.co.jp/detail/detail.php?product_id=364918
http://kohsakanovak.wixsite.com/novk
