Artist name: ひよひよ - Hiyohiyo
Pixiv account name: はいはいさん - Haihai-san

Home page: http://kashiwa-ya.jp/
Site name: かしわ屋 - Kashiwa-ya

Doujin Circle: 鉄拳ねこグルメ - Tekken Neko Gourmet (collaboration with "だこば壱郎 (Dakoba 'Darkover' Ichirou)":https://twitter.com/dkv01. Hiyohiyo draws, Dakoba writes).
Circle web site: http://icg.sakura.ne.jp/
hiyohiyo