High school 3rd year. High School Division, Class 3-A. Not in a club, but has outstanding reflexes and is often called in as a ringer for sports teams. Black hair, red eyes. Hairstyle: A single loop tied at the bottom left of the back of his head. Catchphrase: "Ah-ha!" Face rating: 160 (off the charts). Cares deeply for his siblings. Bad at studying. A mood maker who acts silly but thinks about a lot of things. Disliked by Second. First person: I (rough, casual). Receives at least 30 love letters every day. Real name: Ichi Hikarno (nicknamed First).

High school 1st year. High School Division, Class 1-B. Culture club. Black hair, red eyes. Hairstyle: Two loops tied at the bottom left and right of the back of her head. Catchphrase: "Gross." Cares deeply for her siblings. Good at studying. A total tsundere. Kind-hearted. Female. Adotes Third. First person: I (polite/feminine). Face rating: 160. Gets confessed to often rather than receiving letters (she rejects them). Real name: Nina Hikarno (nicknamed Second).

Middle school 3rd year. Middle School Division, Class 3-C. Tennis club. Black hair, red eyes. Hairstyle: Two loops tied at the top left and right of the back of her head. Short, round eyebrows. Cares deeply for her siblings. Fairly good at studying. Easygoing and kind. Female. D-cup chest. Adored by Second. First person: I (polite). Face rating: 160. Extremely popular but oblivious to it. Real name: Sana Hikarno (nicknamed Third).

Middle school 3rd year. Middle School Division, Class 3-C. Science club. Black hair, red eyes. Hairstyle: Short, masculine cut. No loops. Short, round eyebrows. Cares deeply for his siblings. Good at studying. Gender unknown. Polite and kind. Shows respect to everyone. First person: I (polite). Face rating: 160. So popular it's actually a problem. Real name: Sanae Hikarno (nicknamed One-niichan).

Middle school 2nd year. Middle School Division, Class 2-B. Attends via correspondence/online (but is very smart). Black hair, red eyes. Hairstyle: Short, masculine cut. No loops. Cyclops (single eye). Cares deeply for his siblings. Good at studying. Male. Tsundere. Has a clumsy kind of kindness. First person: I (soft/boyish). Face rating: 160. Stressed out by how popular he is. Real name: Kishita Hikarno (nicknamed Fourth).

Middle school 1st year. Middle School Division, Class 1-A. Ping-pong club. Black hair, gray eyes. Hairstyle: Two loops tied at the top left and right of the back of his head. Right eye hidden by bangs for no particular reason. Cares deeply for his siblings. Good at studying. Male. Cool-headed but kind. First person: I (casual/masculine). Face rating: 160. Love letters are literally overflowing from his desk drawer. Real name: Makoto Hikarno (nicknamed Fifth).

Middle school 1st year. Middle School Division, Class 1-A. Ping-pong club. Black hair, gray eyes. Hairstyle: Two loops tied at the top left and right of the back of his head. Cares deeply for his siblings. Fairly good at studying. Male. Fluffy, gentle personality. Cute. First person: I (soft/boyish). Face rating: 160. Gets confessed to constantly, but one of his older brothers always steps in to stop it. Real name: Shota Hikarno (nicknamed Sixth).