Artist is aono_yuu, but there is already exists aono_yuu here. They seem to be different person as their artstyles are different, both still active, and their names spelt differently. What to do? Edit: Oh, the latter now use this name on pixiv:"ヤンネ(旧:蒼乃ユウ)" with Google Translates to "Janne (formerly Aono Yuu)".