Name: Karamatsu Matsuno Favorite food: Fried chicken Dislikes: Insects First person: I (rough, casual) Characterized by thick eyebrows. Wears a blue hoodie with a pine mark, sleeves rolled up to look cool (even on long-sleeved clothes). In public: Painfully cheesy, a narcissistic poser. True self: Actually normal (his brothers don't know his true self). True Karamatsu: Calm, doesn't try to look cool, popular, expressionless, sleeves not rolled up. However, he prioritizes his brothers and doesn't show this side to them.

Name: Choromatsu Matsuno The voice of reason. Often caught masturbating. Serious, the straight man/comic foil. The third son of the Matsuno family. Thinks he is the most serious among the sextuplets. Good-looking. Nicknames: "Shikomatsu," "Choroshikoski," "Self-Consciousness Rising," "Self-Generating Saburo." Affectionate names: "Choro-chan," "Choromatsu." First person: I (soft, polite) [Occasionally calls himself "Choro-chan" when alone].

Name: Ichimatsu Matsuno The fourth son of the sextuplets. An introverted, negative-thinking idiot who only opens his heart to cats, yet somehow popular and handsome. Nicknames: "S-Matsu," "M-Matsu," "Dark-Matsu," "Moe-Matsu." Apparently an extreme sweet tooth and a total masochist. Also, he hates injections more than anything in the world. If he's about to get a shot, he wails and screams: "I really can't do this! Noooooooo!" He hates shots the most among the brothers. Loves chicken wings. Makes no sound when walking. Good at erasing his presence. A good cook but rarely does it. Usually has half-lidded eyes, but when they open fully, they have highlights. Surprisingly good at acrobatics (the brothers don't know). First person: I (rough, casual).

Name: Jyushimatsu Matsuno. A handsome guy, but cute. Loves baseball! Apparently has a hidden side. Public Persona: First person: I (soft, polite). Somehow pure and innocent for reasons unknown. Always loud and always has his mouth open. Wears clothes with long sleeves (even short ones get stretched out). Catchphrases: "Muscle! Muscle! Hustle! Hustle!", "Nice to meet you home run!", "Thank you for the grand slam walk-off home run!", "Bo-we!", "Aye-aye, sir!", "Wasse, wasse, wasse, wasse!", "Osomatsu-niisan!", "Karamatsu-niisan!", "Choromatsu-niisan!", "Ichimatsu-niisan!", "Todomatsu!", "Totty!" Hidden Side (Doesn't show in front of others; it would be quite a shock if found out): First person: I (rough, casual). Calm and collected. Hates noise. Similar to Ichimatsu. Half-lidded eyes, normal sleeves, mouth closed. Not slouching, but has a low voice tone. Sadistic personality. Deep voice.

With his adorable looks and high femininity, he is good at acting spoiled, but he is also a calculating and "cunning" character who understands and utilizes his own cuteness. He has a dark side that looks down on his brothers coldly and a trendy side, such as working part-time at a stylish cafe. He can be described as the most "modern kid" and the most resourceful playboy among the sextuplets.