Maki Itokazu acts as Kio Kakazu's teacher and school club manager. Her parents, both strict high school educators, instilled discipline, with her father's passion for science fiction authors Arthur C. Clarke and Sakyo Komatsu shaping her rigid expectations of alien life. She heads the Japanese division of "Beautiful Contact," a clandestine group demanding humanity's first extraterrestrial encounter adhere to sci-fi tropes like tentacles, green skin, or insectoid forms.

When confronted by Eris—a Catian alien possessing cat ears and a tail—Maki rejects her authenticity, insisting she is merely a human cosplayer despite overwhelming evidence. This denial persists even after Catians gain public acknowledgment.

Physically, Maki stands 170 cm tall, weighs 55 kg, and possesses brown hair, aubergine-colored eyes, and blood type A. Her measurements are 89-67-80 cm. Personality indicators suggest loyalty and anxiety (Enneagram 6w7), with possible ISTJ traits like duty-driven logic and emotional reserve, though these remain unconfirmed.

During key events, she commands "Beautiful Contact" to eliminate Eris, orchestrating an assault against Kio and the alien. After Eris's capture by a rival faction, Kio blackmails Maki by threatening to expose her secret role, coercing her assistance in Eris's rescue. Despite aiding them, she continues supervising Kio's film club while vocally lamenting the Catians' non-stereotypical appearance. Her skepticism regarding Eris's legitimacy remains unshaken, showing no evolution throughout the series.