Mimori Onodera, a loyal friend to Futaba Yoshinaga, sports vivid purple hair styled with blunt bangs and a distinctive hairband. Her father, who is blind, depends on his guide dog, Lieutenant Avery, for daily navigation. A pivotal moment in her past unfolded during a violent home invasion, where intruders seized Mimori as a hostage. Avery’s deliberate silence during the crisis—a trained tactic to prevent escalating the threat—initially fueled her mistrust, driving her to withdraw from school and resent the dog. The gargoyle Gar-kun later mediated, revealing Avery’s silence as an act of protection. This revelation spurred Mimori to rebuild trust with Avery through shared walks and renewed understanding.

Her resilience was tested again during a town robbery, where she reunited with Futaba. Avery bravely intercepted an attack to shield Mimori, suffering injuries that deepened her gratitude for his loyalty despite his disciplined restraint. Collaborating with the Yoshinaga family and Gar-kun, Mimori contributes to community efforts during local emergencies, her growth rooted in confronting fears and recognizing the steadfast guardianship of both Avery and her supernatural ally. Her narrative remains focused on these core relationships and experiences, without extension into alternate media adaptations.