Kirara Mizutani arrived in the Kingdom of Falmuth via summoning from another world three years before her emergence. She suffered severe mistreatment upon arrival due to her unique negotiation skill, which allowed manipulation of others' thoughts and opinions. This culminated in her killing her summoners, triggering a curse that barred her from activating her powers without direct permission. Deployed with fellow otherworlders Kyoya Tachibana and Shogo Taguchi, Kirara executed missions inciting conflict against the Jura Tempest Federation. Her group's provocations caused fatalities among Tempest's citizens, including an event where Gobzo died shielding Shuna after their instigation. Her involvement peaked during an assault on Tempest's camp. While positioned there, Shogo Taguchi betrayed Kirara, murdering her to absorb her abilities for his clash with Geld. This betrayal terminated her coerced service to Falmuth.