URLs

• https://www.pixiv.net/users/19081328
• https://www.pixiv.net/stacc/yu_f_ko
• https://twitter.com/Just926
• https://twitter.com/yu_f_ko_memo
• https://twitter.com/intent/user?user_id=1089846470394535943
• https://twitter.com/intent/user?user_id=1395674251223572481
• https://sketch.pixiv.net/@yu_f_ko
• http://yufuko.wixsite.com/holyhead/about
• https://www.pixiv.net/users/5695237
• https://www.pixiv.net/stacc/justanother926
• https://twitter.com/yu_f_ko