URLs

• https://www.pixiv.net/users/37152
• https://www.pixiv.net/stacc/tatsuya_ikegami
• https://twitter.com/tat_blackfly
• https://twitter.com/intent/user?user_id=105104437
• https://sketch.pixiv.net/@tatsuya_ikegami
• http://blackfly.cscblog.jp
• http://park17.wakwak.com/~blackfly/