Numa Seika, known as the "Hero of the North" – which Doya also came from – was a combatant who met an unfortunate end at the hands of Esdeath. He was reportedly stripped, put into a chained collar, and forced to lick Esdeath's boots as torture before she ended his life. After she decimated Numa Seika's army, Esdeath turned her attention toward Night Raid.
- Star Trek: The Second Little Wolf – "The Mountain Goat and the Ice Demon" (First mentioned)
- Star Trek: The Second Little Wolf – "The Rangers of the Prime Directive" (Mentioned only)
- Star Trek: The Second Little Wolf – "Descendants of the Ban Tribe" (Mentioned only)