Katsuya is best known for the character design for the animated film : Blood, the last Vampire. He defined himself as a "rakugaki" artist, someone who draws a little everywhere, all the time, without thinking too much. He is indeed a very prolific artist : one of his collections of sketches, "Rakuga King", has more than 1000 pages. His principal activities are illustration and character design, with the use of the computer integrated in his art.
Katusya's sketch represents a monster with a woman, very representative of his work.