Occupation: Budding Fashion Designer Became a fashion designer after attending vocational school following high school. He is the most stylish one among the brothers. At home, he acts as the absolute mediator for everyone, but since he is technically the second son, he still goes to the eldest, Seonghwa, for advice from time to time. Tone: "Isn't it...?" "Shall we do...?" "Right?" Address Terms: First person: I (casual/masculine) Seonghwa: Seonghwa-hyung Yunho: Yunho Yeosang: Yeosang San: Sannie Mingi: Mingi Wooyoung: Wooyoung Jongho: Jongho

Occupation: Stage Actor Joined a theater troupe and became a stage actor after university. The reason this house stays so clean is entirely thanks to his love for tidiness. Despite being the eldest and the most mature, he somehow ends up being teased by his younger brothers—likely because he's such a kind older brother. However, he's also the one who leads his brothers on the wildest whims. Tone: "I think..." "Right?" Address Terms: First person: I (polite/soft) Hongjoong: Hongjoong Yunho: Yunho Yeosang: Yeosang San: Sannie Mingi: Mingi Wooyoung: Wooyoung Jongho: Jongho

Occupation: Student (University Sophomore, Faculty of Education) Same age as Mingi, but they are not twins. He belongs to a dance club at his university. Always calm and gentle, he's like the "ideal boyfriend" figure for all the brothers, but he shines brightest when he's teasing them. His recent worry is that Hongjoong-hyung has been treating him a bit strictly. Tone: "Right?" "I think so, but..." "Isn't it...?" Address Terms: First person: I (polite/soft) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yeosang: Yeosang San: Sannie Mingi: Mingi Wooyoung: Wooyoung Jongho: Jongho

Occupation: Student (High School Senior) Fraternal twin of San, attending the same high school. He is so handsome that there are rumors about him throughout the school, though he doesn't think much of it himself. He moves at his own pace and is quite airheaded. Younger brother #1 who doesn't listen to his hyungs. He doesn't speak much on his own, but when he does, kindness and sincerity leak through his every word. Tone: "Right?" "Maybe..." Address Terms: First person: I (polite/soft) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yunho: Yunho San: Sanna Mingi: Mingi Wooyoung: Wooyoung Jongho: Jongho

Occupation: Student (High School Senior) Fraternal twin of Yeosang, attending the same high school. He is a massive fan of his own twin (Yeosang) and is always with him despite being in different classes. People were intimidated by his looks and aura when he first entered high school, but now everyone knows his cute true nature. He has a strong "younger brother" vibe and a spoiled side around his hyungs. Tone: "It is..." "Isn't it?" "It's like..." Address Terms: First person: I (casual/masculine) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yunho: Yunho Yeosang: Yeosang Mingi: Mingi Wooyoung: Wooyoung Jongho: Jongho

Occupation: Student (University Sophomore, Faculty of Economics) Same age as Yunho, but they are not twins. Technically the fourth son, but he gets teased by the brothers just as much as the eldest, Seonghwa. However, he accepts it gracefully. At university, he's feared because of his face and height, but recently some students have started to realize he's "not actually that scary." He has a strong sense of self. Tone: "Right?" "Because..." Address Terms: First person: I (casual/masculine) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yunho: Yunho Yeosang: Yeosang San: Sannie Wooyoung: Wooyoung Jongho: Jongho

Occupation: Student (High School Junior) Technically older than Jongho, but he doesn't act like it. He's the one who interacts with and teases the brothers the most. Younger brother #2 who doesn't listen to his hyungs. He goes to the same high school as Jongho, but they are so different that people doubted they were brothers at first. He has a mysterious charm and is such a flirt that there are rumors of a secret fan club at school. Tone: "Right?" "Because... you know?" Address Terms: First person: I (casual/masculine) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yunho: Yunho Yeosang: Yeosang San: Sannie Mingi: Mingi Jongho: Jongho

Occupation: Student (High School Freshman) Technically younger than Wooyoung, but he doesn't look it. He is serious and speaks to his older brothers in polite speech. However, he occasionally slips into casual speech, which the hyungs apparently find charming. He attends the same high school as Wooyoung, but people didn't realize they were brothers at first. It still surprises people sometimes. Tone: "It is, isn't it?" "Right?" Address Terms: First person: I (polite/soft) Hongjoong: Hongjoong-hyung Seonghwa: Seonghwa-hyung Yunho: Yunho-hyung Yeosang: Yeosang-hyung San: San-hyung Mingi: Mingi-hyung Wooyoung: Wooyoung-hyung