URLs

• https://www.pixiv.net/users/53803070
• https://www.pixiv.net/stacc/artyo_yamaguchi
• https://twitter.com/r_r0918
• https://twitter.com/intent/user?user_id=1379270720509763588
• https://www.youtube.com/channel/UCyTi5xAx8cA7R4CbQX8D_AA