Artist, illustrator, mangaka.
Japanese name: 谷口 世磨 (Taniguchi Seima)
The other name: ｇｕｓｓａｎ
Site name: オワラナイ遠足気分
He is a member of Fujishima-sei Ichi-Gou's circle A－WALKs
https://www.pixiv.net/users/22863
https://www.pixiv.net/stacc/0827
https://twitter.com/gussan0seima
https://twitter.com/intent/user?user_id=127012452
https://sketch.pixiv.net/@0827
https://www.tinami.com/creator/profile/17504
