Kaibara Ekken (1630-1714), a Japanese Neo-Confucian philosopher and botanist
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Kaibara, Hyōgo, a former town located in Hikami District, Hyōgo, Japan.
Den was born in Tamba-Kaibara Domain, located in Hikami District of Tamba Province (part of the modern-day city of Tamba, Hyōgo), where his father was a wealthy farmer and landholder.
Original novel series released under the label include Read or Die by Hideyuki Kurata, Happy Seven by Hiroyuki Kawasaki, Ginban Kaleidoscope by Rei Kaibara, Kure-nai by Kentarō Katayama, and Akikan! by Riku Ranjō.