Akihiko Kira, the youngest director in Seiso Academy's history and a direct descendant of its founders, oversees the institution. He possesses black hair, red eyes, stands 183 cm tall, has AB blood type, and was born on January 3. He is 31 during *secondo passo* and 34 in *Corda FF*.

He assumed the directorship during a severe financial crisis. His solution was a controversial restructuring plan, dividing the academy into separate music and general education divisions. This decision drew student opposition, notably from Kahoko Hino. Akihiko challenged her to organize a successful Christmas concert featuring musicians from both divisions, testing if the academy's unified spirit could endure.

Akihiko lives with prosopagnosia, struggling to recognize faces despite repeated encounters. Initially pragmatic and stern, particularly regarding institutional decisions, his interactions with Kahoko and her peers gradually fostered a more open-minded and conciliatory leadership style, suggesting his initial demeanor stemmed from the pressures of stewardship rather than inherent nature.

His personal history includes violin performance, abandoned after an unspecified past tragedy that instilled a deep aversion to music. He was junior to Hiroto Kanazawa during their student years. Akihiko shares a unique, complex relationship with the magical entity Lili, being one of the few individuals capable of perceiving it alongside Kahoko. He is also a relative of Kiriya Etou.