Akira Inukai, an 18-year-old student with black hair and olive eyes, has maintained a close friendship with Honoka Tamarai and Nobunaga Asaji since childhood. His quiet, stoic demeanor often reads as blunt or detached, yet he harbors a sharp protective instinct, particularly toward Honoka. He intervenes swiftly against anyone eyeing her with inappropriate interest, his reactions fueled by an unspoken loyalty to shield her from harm.

Within the trio, Akira serves as a vigilant guardian, counterbalancing Honoka’s naive tendencies with silent vigilance. His reserved nature rarely cracks to reveal emotion, but his actions—stepping between her and potential threats, curtly dismissing disrespectful peers—speak decisively of his priorities. Interactions beyond his inner circle remain terse, though rooted in a steadfast concern for those he values.

While his personal history remains unexplored, Akira’s role centers on sustaining the safety and cohesion of his childhood friends. His presence functions as a constant, understated shield, unwavering in duty but devoid of overt narrative focus on individual growth or backstory.