URLs

• https://www.pixiv.net/users/45036835
• https://www.pixiv.net/stacc/user_gjte2588
• https://twitter.com/KeitarouT
• https://twitter.com/intent/user?user_id=462768842
• https://ponpononline.booth.pm
• https://ponpondoonline.fanbox.cc
• https://www.pixiv.net/fanbox/creator/45036835
• https://sketch.pixiv.net/@user_gjte2588
• http://tthtk.blog.fc2.com
• https://www.amazon.co.jp/-/e/B003UWSZFM/
• https://www.mangaupdates.com/author/yrj2xag
• https://www.mangaupdates.com/authors.html?id=2959
• https://en.wikipedia.org/wiki/Keitaro_Takahashi
• https://ja.wikipedia.org/wiki/高橋慶太郎
• https://anidb.net/creator/29724
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=76554
• https://www.jormungand.tv
• https://www.mobygames.com/person/1204160
• https://myanimelist.net/people/4091
• http://twitpic.com/photos/KeitarouT