https://www.pixiv.net/users/7997464
https://www.pixiv.net/stacc/knaka0414
https://twitter.com/butano_buuta
https://twitter.com/intent/user?user_id=2904435517
https://seiga.nicovideo.jp/user/illust/32809209
https://sketch.pixiv.net/@knaka0414
https://misskey.io/@butasan
https://misskey.io/users/9bpqol653o
https://bsky.app/profile/butasan.bsky.social
https://bsky.app/profile/did:plc:evh3z6dtothqk2gvypuqg5fv
