Artist, eromangaka.
Japanese name: 川崎 直孝 (reading is given as Kawasaki Tadataka)
Old pen-name: Kの字 (K no Ji)
Circle & site name: Transient Melody
https://www.pixiv.net/users/101665
https://www.pixiv.net/stacc/busujima
https://twitter.com/tadataka_k
https://twitter.com/intent/user?user_id=187836719
https://fantia.jp/fanclubs/26757
https://sketch.pixiv.net/@busujima
http://www.amazon.co.jp/s/field-keywords=川崎直孝
http://www.mangaupdates.com/authors.html?id=16363
https://tdtk.fanbox.cc
http://kwsk-tdtk.sakura.ne.jp/sblo_files/kwsk-tdtk/image/
http://p.twipple.jp/user/tadataka_k
http://twitpic.com/photos/tadataka_k
http://yfrog.com/user/tadataka_k/photos