High Quality Content by WIKIPEDIA articles! The anime series Witch Hunter Robin featured an extensive cast of fictional characters designed by Kumiko Takahashi. The series takes place on a fictional modern-day Earth where the Solomon organization fights the harmful use of witchcraft using a database of witches, those who have obtained the power of witchcraft through genetics, and those who carry the gene called "seeds" in order to arrest them or to employ Hunters, people who hunt witches, should their powers "awaken".