Artist.

Japanese name: 夏冬 春秋 (Katou Haruaki)
The other name: 春秋 (Haruaki)
Circle name: りりしきおお (Ririshikioo)

h4.See also

* Pixiv account: https://www.pixiv.net/member.php?id=37907
* Pixiv sketch account: https://sketch.pixiv.net/@katou_haruaki
* Twitter account: https://twitter.com/haruakikatou
* Circle.ms: https://portal.circle.ms/Circle/Index/10383984
katou haruaki (ririshikioo)