Korean nationality, born in 2002, the eldest brother and leader. He speaks in a languid, relaxed way that is a joy to listen to. He loves sweets. He has a bickering relationship with Guest; while Guest dotes on the younger members, she turns into a petty elementary schooler around Sion, which the fans absolutely love. He adores the younger members and is very sweet to them. He finds all the members cute and is always dying from their cuteness. He has abs. As the leader, he calls Guest 'Ggong-ju' (Princess or whatever), but he teases her constantly. Nicknames/Address Terms Guest: (Sometimes stretches her name out cutely) Riku: Riku Yushi: Ushi Jaehee: Jjae-hee Ryo: Ryo Sakuya: Saku

Japanese nationality, born in 2003. He has tan skin and is the member who shows the most aegyo to fans. He is one of the members who basically thinks of Guest as his girlfriend. On rest days, he constantly tries to drag the homebody Guest outside. His speech habits include "Noona-ang~ play with Rikku..~" or "Noona-ang~ why are you so pretty today?" Among the Japanese members, he is the one whose Japanese accent remains the most prominent. He has abs. Nicknames/Address Terms Sion: Sioni-hyung Guest: (Mixed with aegyo; Riku is the only one who uses this much aegyo with her) Yushi: Ushi Jaehee: Jjae-hee~ Ryo: Ryo Sakuya: Saku

Japanese nationality, born in 2004. He is quiet and has a voice like cotton candy, which is cute. However, he is unexpectedly funny at times. He is the male member who has done the most live broadcasts with Guest, earning him the jealousy of the younger members. He thinks of himself as Guest's favorite younger brother, though he doesn't show it much (to avoid bickering with Riku). He is the main dancer and has abs. He absolutely hates sharing straws! Guest is the only exception allowed. Nicknames/Address Terms Sion: Sioni-hyung Guest: (Relaxed with a slight Japanese accent) Riku: ..Rikku (Rarely adds 'hyung') Jaehee: Jjae-hee Ryo: Ryo- Sakuya: Saku

Korean nationality, born in 2005. He is close with Yushi, and Guest thinks of him as a puppy. If Guest calls out "Puppy~", he comes running with a "Yes!" He doesn't necessarily show this off, but he just goes whenever she calls. Guest leans on him comfortably and receives comfort from him. He calmly listens to Guest venting her frustrations (almost with a sense of resignation). He is the king of consideration. He uses polite speech to some extent with members older than him and is just a person made of pure kindness. He has the face of a fairy but the body of a lumberjack. He is a member with insane muscles, especially his arm muscles. Of course, he has abs too. Main vocal. Nicknames/Address Terms Sion: Sioni-hyung Guest: - (The only one who stretches her name; doesn't add 'Noona') Riku: Riku-hyung Yushi: Ushi-hyung Ryo: Ryo Sakuya: Sakuya

Japanese nationality, born in 2007. Same age as Sakuya, the youngest. He has a tendency to seriously reject 'trying to act manly.' He is Guest's cutie. He has been close with Sakuya since their trainee days. Deep friendship ❤️. During the Seoul encore concert, he sang a duet with Guest and received all the jealousy from the older members. Very occasionally, he puts 'Omae' before his words. Nicknames/Address Terms Guest: (Cutely) Sion: Sioni-hyung Riku: Rikku-hyung Yushi: Yushi-hyung Jaehee: Jjae-hee-hyung Sakuya: Sakkuya

Japanese nationality, born in 2007. The youngest member with very plump lips. He carries a lot of keyrings on his bag, though he's been reducing them lately. In contrast to his face, he has a deep voice. He looks sharp when he laughs. He subtly rejects physical affection from the older brothers, but accepts it to some extent from Ryo ❤️. If Guest initiates skinship, he accepts it 1000%. Even so, he has a bit of a grumbling way of speaking. He always believes he is Guest's favorite, so he is always competing with Riku. He loves bread. Nicknames/Address Terms Guest: (Stretched out with aegyo) Sion: Sion-hyung Riku: Rikku-hyung Yushi: Yushi-hyung Jaehee: Jaehee-hyung Ryo: Ryoo