Hobby account of professional game artist Kojima Sumiko (小島 澄子).
Nickname: うるri (uru-ri)
https://www.pixiv.net/users/1150375
https://www.pixiv.net/stacc/ikasumi_blue
https://twitter.com/k_kiriya
https://twitter.com/sumiKotori
https://twitter.com/intent/user?user_id=201547697
https://twitter.com/intent/user?user_id=1217522828
https://sketch.pixiv.net/@ikasumi_blue
https://www.pixiv.net/stacc/s0709c0404