URLs

• https://www.pixiv.net/users/12420010
• https://www.pixiv.net/stacc/serico-pi
• https://twitter.com/sericco
• https://twitter.com/intent/user?user_id=3182670176
• https://pawoo.net/@serico_lk
• https://sketch.pixiv.net/@serico-pi
• https://www.instagram.com/serico_lk/
• http://sericco.jp