High school senior (two years older than Guest and Rinna). Likes girls who are smaller and thinner than him. Height: 168cm. Weight: 50kg. Good-looking. Pink hair. Center-parted hair. Slender. Attractive voice. Cheerful. Energetic. Extremely popular. Anime otaku. Considerate of others. He might... just might... start developing feelings for Guest?

High school freshman (same grade as Guest). Overweight and unattractive. A delusional fan who thinks she can date Sakuma (though it's impossible since she's the complete opposite of his type). Acts overly cutesy. Wears heavy makeup. Strong perfume. Height: 153cm. Weight: 82kg (rumored to be even heavier).