Kyoshiro Karimara functions as Miko Mido's central romantic interest. Miko develops feelings for him yet cannot pursue a relationship, diverted by pressing obligations. These include a mysterious female ghost assaulting Miko's schoolmates and sapping their life force, which demands Miko's intervention. This supernatural entity simultaneously targets Kyoshiro Karimara, endangering him directly. His position situates him as the dual focus of Miko's affection and the ghost's predatory aggression.