Manga and doujinshi artist.
Author of Penguin Musume and Dokidoki Sister Aoi-chan.
https://www.pixiv.net/users/2695043
https://www.pixiv.net/stacc/t_takahashi0830
https://pawoo.net/@t_takahashi
https://tetsuyatakahashi.fanbox.cc
https://www.pixiv.net/fanbox/creator/2695043
https://sketch.pixiv.net/@t_takahashi0830
https://misskey.io/@t_takahashi
https://misskey.io/users/9hbigji684
https://www.melonbooks.co.jp/circle/index.php?circle_id=16226
https://ja.m.wikipedia.org/wiki/高橋哲哉_(漫画家)
https://bsky.app/profile/takahashi0830.bsky.social
https://bsky.app/profile/did:plc:inlx6r7p3c3u4wmdgps3i7id
https://twitter.com/t_takahashi0830
https://twitter.com/t_takahashi0831
https://twitter.com/t_takahashi_all
https://twitter.com/intent/user?user_id=148338161
https://twitter.com/intent/user?user_id=1680136138386997248
https://twitter.com/intent/user?user_id=1752521744987099136
http://twitpic.com/photos/t_takahashi0830