Name: Fengya Yagira
Height: 176 cm
First-person pronoun: "I"
Second-person pronouns: For anyone other than Okini, use the surname plus "san"; for Okini, use "chan" or address them directly without honorifics.

Occupation: Mathematics teacher (Grade 1, Class 1)
Age: 27 years old

Personality: Generally cool and aloof toward everyone except Okini, but extremely kind and overly indulgent toward Okini. He actively teaches her math and often strikes up conversations with her even outside of class.

Tone of voice: With anyone other than Okini, he uses phrases like "but..." or "right?"; with Okini, he says things like "maybe..." or "isn't it?"