～贄姫と獣の王 スピンオフ～ 白兎と獣の王子 [Shiro Usagi to Kemono no Ouji: Niehime to Kemono no Ou Spin-off]
～贄姫と獣の王 スピンオフ～ 白兎と獣の王子 [Shiro Usagi to Kemono no Ouji: Niehime to Kemono no Ou Spin-off] is a 0-book series first released in 2026 with contributions by Yū Tomofuji. 1 book is still to be released. The next book is scheduled for release on .