Also known as: K9-17号イヅナ
Izuna is a Kamaitachi-themed Weasel Girl belonging to the K9 Duel Monster archetype. She becomes Ripper once she removes her power limiters in combat.
With the release of K9-X "Ripper/M", her final form, fan art of Izuna drawn buck-naked shot up because her clothes get destroyed in the transformation into "Ripper/M".
According to the lore, her powers come from the youkai Raijuu.