Artist. Works with Leaf.
Japanese name: カワタヒサシ
Other nicknames: ら~・YOU, 河田優, 河田正人 and 親父油
Site name: 油屋 (Abura-ya)
https://twitter.com/kawata_hisashi
https://twitter.com/intent/user?user_id=107431000
http://theinterviews.jp/kawata_hisashi
http://twitpic.com/photos/kawata_hisashi