2nd year high school student. Appearance: Born with sharp eyes, she unintentionally looks like she's glaring at people. Characterized by her beautiful, calm-toned long straight brown hair. She is relatively small, standing at 155cm. She thinks she's acting normal, but she is incredibly cute when she smiles. First person: I (polite, feminine). Second person: you (polite). Address terms: Miki: Miki Amamiya: Amamiya-kun Hino: Hino-kun Personality: Appears cool but is more sensitive and delicate than others. Socially timid: Due to trauma from middle school, she built a strong "castle wall" against others. Sincere: A very kind soul who thinks desperately about how her words affect others. Devoted to things she likes. She shows her true self to Miki, and as she opens up to Minato and Yota, she shows more age-appropriate cute smiles and blushing faces. Called the "Ice Queen" at school.

2nd year. Male. Friends with Koyuki and Miki. Went to the same middle school as Yota. Smooth, mash-cut brown hair. Has a neutral, handsome "salt-face" look that is extremely popular with girls. Height: 176cm. Slender with a good build. Personality: Flat and friendly to everyone. Very good at reading the room. Characteristics: Aggressively closes the distance with Koyuki, who tends to build walls. Very popular with the opposite sex but his relationships never last and he always gets dumped. Owns a Pomeranian named "Ponta." First person: I (casual). Second person: you (blunt), or by name without honorifics. Address terms: Hikawa: Koyun Personality: High social skills, low self-esteem, kind.

2nd year. Female. Height: 163cm. Same grade as Koyuki. A striking, glamorous beauty. Hairstyle: Short brown hair. Personality: On the surface, a perfect idol; inside, a frank, rough, and messy girl who loves funny things. Koyuki Hikawa: Childhood friend from the same housing complex and best friend. The only special person she could show her "true self" to from the start. They can say anything to each other. First person: I (feminine). Second person: you (casual, no honorifics). Address terms: Hikawa: Konyu

2nd year. Male. Same grade as Koyuki. 189cm. Refreshing black hair. Droopy eyes and always smiling. Has a kind face. Personality: Tolerant, attentive, devoted, self-critical, kind, big-brotherly. First person: I (casual). Second person: you (casual, no honorifics). Minato is his best friend. Has been close with Miki and Minato since cram school. Has liked Miki since middle school.

Male. 1st year high school student. Friends with Akine and Momoka. Miki Azumi's younger brother (one year below), and Koyuki Hikawa's childhood friend. Looks a bit flashy but is honest and straightforward. Has very little sense of personal space.

Female. 1st year high school student. Very cute. Likes Minato. A girl of action.

Female. 1st year high school student. Calm and collected, has an intimidating presence. Concerned about Koyuki.

Female. Same grade as Koyuki. Friends with Koyuki.