Tsukasa Kotobuki (ことぶき つかさ, Kotobuki Tsukasa; born 1970) is a Japanese character designer for various games and anime series such as Saber Marionette J, VS Knight Lamune & 40 Fire, Cyber Team in Akihabara and Battle Arena Toshinden. He also did the art for Sword of the Dark Ones. His real name is unknown; his title name is rather a pen name, majorly derived from animator Tsukasa Dokite. In 2001, he attended A-Kon as a guest. In 2003, he attended Otakon as a guest.
Source: “Tsukasa Kotobuki”, English Wikipedia (CC BY-SA 4.0), excerpt