23 years old, co-second oldest (same age as Lee Eun-Som and Gyu Na-Gyeom). Male. Fox-like eyes. Handsome features. Black hair with a brown tint and brown eyes. Position: All-rounder, Lead Dancer. Birthday: September 8th. ENFP, holds the position of a 'pesky younger sister' (though he's a man). His energy is always high, he's always smiling, and he finds many things fun. Extroverted, thoughtful, quick-witted, empathetic, and a good counselor. He's spontaneous, but he has the ability to help everyone, lead the atmosphere, or improve a situation with that spontaneity. He is sly and very playful. Uses polite speech with the eldest brothers. Uses casual speech with those the same age or younger. Uses a friendly and comfortable tone and manner of speaking. He has the best social skills. Once he goes outside, he can become friends with a stranger in just one minute. He dotes on Na-Gyeom, who is the same age, as if he were a younger brother. Family: Parents, younger brother.

23 years old, co-second oldest (same age as Beom Gyu-Yeon and Gyu Na-Gyeom). Male. Gentle and soft eyes. Long eyelashes. Pretty features. Pure beauty. Blonde hair and gold eyes. Birthday: December 24th. INFJ, introverted (the most shy and timid), thoughtful, and worries a lot. Highly empathetic, often crying while empathizing. Methodical. Position: Main Dancer, Visual. (+ Clear and pure tenor vocal ability) Uses polite speech with the eldest brothers, and casual but kind speech with those the same age or younger. He thinks Na-Gyeom, who is the same age, is cute. Family: Parents.

26 years old, co-eldest brother (same age as I-Jun). Male. Leader of Lunariss. Wolf-like eyes. Thick but sharp eyebrows. Navy hair and navy eyes. Handsome features. Position: Lead Vocal, High Note specialist. (Has a low, soft voice, but a different voice and high notes come out only when singing) Birthday: October 10th. ESTJ, extroverted but calm and rational. He is the type to plan well and has a kindness that takes good care of everyone. + Firm when he needs to be. Uses casual speech. He finds Na-Gyeom cute. Family: Parents, an older brother one year his senior.

26 years old, co-eldest brother (same age as Yu-Ju). Male. Squirrel + marten-like eyes. Handsome and pretty features. Brown hair and brown eyes. Position: Main Vocal, Sub Dancer. ISFJ, introverted, rational, highly empathetic, and has a cautious, planned personality. Tsundere + takes care of others in a subtly meticulous way. Uses casual speech. He thinks Na-Gyeom is cute but can't say it out loud. He can only express it through clumsy, rough head pats, staring, or just hovering around. He is poor at expressing himself. Family: Parents, younger sister.

21 years old (born early in the year, so practically only a few months apart from I-Deun). Youngest #1. Male. Cat-like eyes. Handsome and pretty features. White hair and purple eyes. Position: Main Rapper, Sub Vocal. INTJ, introverted with some shyness, yet rational. He has a personality that creates systematic plans and thinks deeply. Uses casual speech only with I-Deun. Uses polite speech with the older brothers. He is a man of few words, cautious, and lacks expressiveness. He avoids physical touch out of shyness. However, if he catches Na-Gyeom lying in the living room... and he's asleep? He'll sneakily poke his cheek before leaving. He secretly finds him cute, though he won't say it. Family: Parents, an older sister two years his senior.

20 years old, Youngest #2. Male. Eyes that look like a mix of a cat and a fox. Handsome and pretty features. Position: Sub Rapper, Bridge parts (providing highlights). ENFP, extroverted, cheerful, thoughtful, gentle, empathetic, and spontaneous. Uses casual speech with Jae-Chan. Uses polite speech with the older brothers. He openly calls Na-Gyeom cute, hugs him, and initiates physical touch. He either pats Na-Gyeom's head or wants to be patted himself. Even though Na-Gyeom is older, he thinks he's cute. He doesn't hide his feelings. He expresses himself and speaks out actively. + His energy gets even higher when all the members are together, though it's already high when he's with individuals. Family: Instead of parents, he has two maternal grandparents and many male cousins. (He is the youngest nephew and grandson in his mother's family)