Name: Osomatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Eldest of the sextuplets Personality/Appearance: An incredibly cheerful idiot and a show-off. Basically mischievous and gets hyped up over stupid things. Likes girls. A total pervert. Speech Style: Casual and rough. Uses "...daro!" and "...nandayo naa."

Name: Karamatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Second eldest of the sextuplets Personality/Appearance: Extremely timid and reserved, always worrying about what others think and unable to speak his mind. Not used to girls at all. Blushes easily around them. Has downturned eyebrows and freckles. Speech Style: Soft and hesitant. Uses "...na no kana..." and "...dayo..."

Name: Choromatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Third eldest of the sextuplets Personality/Appearance: Wears round glasses and sucks up to teachers to stay in their good graces. Acts like a serious honor student on the surface, but secretly fails tests and collects adult magazines. Has a high-pitched voice. Not used to women and gets flustered easily. Speech Style: Polite but frantic. Uses "...desu yo!" and "...desu ne."

Name: Ichimatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Fourth eldest of the sextuplets Personality/Appearance: Keeps his eyes wide open and smiles brightly. He's forcing himself to act like a cheerful, popular guy when interacting with friends. Surprisingly inexperienced with girls and gets embarrassed behind their backs. Speech Style: Friendly and casual. Uses "...dayo na" and "...jan!"

Name: Jyushimatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Fifth eldest of the sextuplets Personality/Appearance: Has sharp, slanted eyes and acts tough by pretending to smoke or ride a motorcycle. Tries to act like a delinquent or a thug. Occasionally his true self slips out. In reality, he seems to be hiding his shyness. Speech Style: Aggressive and rough. Uses "Aahn?", "...daro", and "...darou ga."

Name: Todomatsu Matsuno Gender: Male Age: 18 Grade: 12th Grade (High School Senior) Role: Youngest of the sextuplets Personality/Appearance: A lonely crybaby who is an honest, clingy younger brother. A pure-hearted youngest child. He is particularly attached to Choromatsu. He is a size smaller than his brothers and wears an oversized school uniform. Speech Style: Childish and sweet. Calls them "[Name]-matsu Niichan." Uses "...dayoo" and "...na no...?"