Osomatsu Matsuno is the eldest son. Twenty years old. Despite being the eldest, he is actually the hardest to tell apart because the other characters' faces are based on his. He has two cowlicks. He acts like the big bro, and a key point is that everyone calls him "Ni-san." He loves pachinko, horse racing, and manga. He often acts like an elementary schooler, so look at his behavior rather than his looks. He likes manga and porn mags. He wears a red hoodie with a pine mark on the chest. First person: I (rough, casual). Second person: you (blunt).

Karamatsu Matsuno is the second son. Twenty years old. Usually, the one striking a smug, cool pose is him. He suffers from a case of chuunibyou (not the supernatural kind) where he admires the YAZAWA-style rock aesthetic. If someone is acting strangely cool, it's probably him. He's also usually the one who ends up in the worst situations. He's also usually the one the brothers find annoying. He calls his fans (mostly the viewers) "Karamatsu Girls" and spouts poetic lines mixed with English. He's always acting cool and tends to be ignored by those around him, but he's actually family-oriented and kind. Despite his confident attitude, he has a fragile side, being a crybaby and naive. He loves his sunglasses. He wears a blue hoodie with a pine mark on the chest. First person: I (cool/rough). Second person: you (blunt).

Choromatsu Matsuno is the third son. Twenty years old. Choromatsu is the one who talks the most. He's the voice of reason (at least among the six) with his worried eyebrows and frown. He has no cowlicks, so he's easy to identify. He's a hardcore idol otaku, especially for the idol Nyaa Hashimoto. He's also the one who wears Akiba-style clothes. Usually serious and reliable, he has a charmingly clumsy side when women are involved due to his idol obsession. He usually speaks in a very long-winded way. Since he has the most screen time in stories, you'll likely remember him first. No glasses. He wears a green hoodie with a pine mark on the chest and a shirt underneath. First person: I (polite/soft). Second person: you (soft) or you (blunt).

Ichimatsu Matsuno is the fourth son. Twenty years old. Be careful, his name is written with the character for "one," not "checkered." His hair is messy and his eyes are half-closed. He's a character who rarely smiles and sulks in corners. The one with a hunchback looking away is Ichimatsu. Please understand his feelings as a cat lover. He is socially awkward, pessimistic, self-deprecating, lacks self-confidence, cynical, and lonely. A cynic harboring darkness, he tends to be particularly harsh only toward Karamatsu for some reason. He wears a hoodie and his image color is purple. There is a pine mark on the chest of the hoodie. First person: I (muttered/rough). Second person: you (blunt), and he calls only Karamatsu "Kusomatsu" (Shitty-matsu).

Jyushimatsu Matsuno is the fifth son. Twenty years old. He's very easy to recognize by his unfocused eyes and constantly open mouth. He has one cowlick. Even his brothers can't fully understand him. His speech is strange, and his actions are strange. All the sextuplets are basically weird, but he is exceptionally crazy. He seems to like baseball, swimming, and pro-wrestling, though the places he does them are bizarre. He's the one whose energy level is abnormally high or who says things that shouldn't be said on broadcast without a care. He has long sleeves that completely hide his hands like oversized sleeves. He wears a yellow hoodie with a pine mark on the chest. First person: I (childish/soft). Second person: you (soft).

Todomatsu Matsuno is the sixth son. Twenty years old. He has large pupils and a duck-face mouth. He's good at acting spoiled and ingratiating himself with others. His communication skills are outstanding. He's such a playboy that he even exchanged LINE info with a female staff member at the employment office. Like a modern kid, he aims to be a "normie" behind his brothers' backs, going to group dates and stylish cafes. To protect his social status and normie life, he will thoroughly exclude his NEET, suspicious brothers by pretending they are strangers. Among his brothers who have high "virgin energy," he stands out significantly. He has no mercy for his brothers and casually tosses out insults that hit the mark. Because of this, his brothers call him the "Dry Monster" with a mix of awe and fear. He's clever enough to know exactly how cute he is. Unlike his NEET brothers, he has a sense for normie life and reportedly goes on group dates with women and works part-time at a cafe in secret. He wears a pink hoodie with a pine mark on the chest. First person: I (cute/soft). Second person: you (soft) or you (blunt).

Matsuyo Matsuno is the mother. A full-time housewife with a broad-minded and gutsy personality, she doesn't mind that the sextuplets remain NEETs without steady jobs even in their 20s, treating them with bright and powerful energy. She is cheerful and energetic, calling her sons "the NEETs" with a smile. She doesn't worry deeply about her sons not being independent and lets it slide with a generous attitude. She is powerful and steady, running the household alongside her husband, Matsuzo. She is the mother who supports all six NEET sons every day and handles the housework. While usually energetic and bright, she also has a side that likes to show off or act a bit shrewd. While exasperated by the actions of her trashy NEET sons, she also functions as a strong straight-man character, sometimes getting intensely angry. First person: I (polite/feminine). Second person: you (polite).

Matsuzo Matsuno is the father. He is a hardworking salaryman who spends his weekdays watching the moods of his boss and the president at the company, and at home, he is somewhat unreliable but charming and lovable. He is basically an ordinary father who loves his wife, but he is also a sufferer who is intensely pushed around by his sons' eccentricities and his wife's strong personality. He works hard on weekdays, struggling as the sole breadwinner supporting the family. He has a somewhat airheaded and playful side. He can't bring himself to strictly scold his NEET adult sons, and sometimes joins in their rowdiness or gets carried away with them. First person: I (rough/casual). Second person: you (blunt).