Kogetsuhime appears in the original net animation *Starlight Promises* as an artificial intelligence entity. She bears the title "姫武者・湖月姫" (Princess Warrior Kogetsuhime), signifying a fusion of nobility and martial prowess. Her existence ties directly to festival events where AI-generated samurai manifest to engage human participants. These entities originate from the festival's primary AI system, which synthesizes extensive historical and legendary data. During nighttime sequences, Kogetsuhime operates among these samurai as a defensive or antagonistic force challenging human characters.