Artist.
Japanese name: 西北 佐平 (reading is given as "Sha-pei Sahei" or "Nishikita Sahei")
The other name: 佐平 (Sahei)
Old name: さぺ (Sape)
https://twitter.com/KahkiTimeYear02
https://twitter.com/intent/user?user_id=744940512319148032
https://skeb.jp/@KahkiTimeYear02
https://enty.jp/KahkiTimeYear
https://odaibako.net/u/KahkiTimeYear02
https://www.pixiv.net/users/4303553
https://www.pixiv.net/stacc/sahei_n
https://twitter.com/sahei_02
http://p.twipple.jp/user/sahei_02
http://twitpic.com/photos/sahei_02