Artist.
Japanese name: 春夏秋冬 (ヒトトセ, Hitotose)
Circle name: 匿名希望スタジオ (circle partner: みかえる)
Site name: All Season.
https://www.pixiv.net/users/157397
https://www.pixiv.net/stacc/spiralray
https://twitter.com/MrHitotose
https://twitter.com/intent/user?user_id=2495954126
https://seiga.nicovideo.jp/user/illust/9911620
http://com.nicovideo.jp/community/co1884103
https://www.nicovideo.jp/user/9911620
https://pawoo.net/@HitotoseSan
https://pawoo.net/web/accounts/190610
https://sketch.pixiv.net/@spiralray
http://allseason00.web.fc2.com
