Artist.
Japanese name: 丸太郎 (Marutarou)
The other name: まる (Maru)
https://www.pixiv.net/users/10093287
https://www.pixiv.net/stacc/marutaro0218
https://twitter.com/marutaro02
https://twitter.com/intent/user?user_id=2848652065
https://marutaro.booth.pm
https://seiga.nicovideo.jp/user/illust/35773009
https://www.nicovideo.jp/user/35773009
https://sketch.pixiv.net/@marutaro0218
https://www.tinami.com/creator/profile/55582
http://privatter.net/u/marutaro02
https://ameblo.jp/marutaro02
https://www.pixiv.net/users/4501189