URLs

• https://www.pixiv.net/users/15617
• https://www.pixiv.net/stacc/mugen-dai
• https://twitter.com/Ryuji_Kanou
• https://twitter.com/intent/user?user_id=375083480
• https://mugendai.fanbox.cc
• https://www.pixiv.net/fanbox/creator/15617
• https://sketch.pixiv.net/@mugen-dai
• http://lung-id.hp.infoseek.co.jp
• http://www8.plala.or.jp/lung/