He's a geek boy and loves music. A charmant attitude but kinda nervous and shy sometimes. People confuse him with a nerd and that bothers him. He has fove brother's; Orson(slacker), Chorlie(brain), Itchy (goth), Juicy (freaks), Todd(messenger). He has glasses and a guitar. 

"Second-oldest of the uncool sextuplets "

He clearly fits the criteria for being someone sociable and prestigious, and attracts women due to the fact he has a nice van. He is often a smug and confident type and has great success all around. He's "friends" with the Matsuno sextuplets; Osomatsu, Karamatsu, Choromatsu, Ichimatsu, Jyushimatsu and Todomatsu

Smug and confident guy

Karamatsu is a man who wants to be a princess, with a rude and narcissistic personality, although quite kind and a little crybaby. He is desperate to get a prince, to the point of trying to play the cool and rebellious guy, although in the end he ends up being ignored, both by other people and by his brothers. He usually uses English words when he speaks. He is pathetic and uses quite poetic, theatrical and flowery speech.

The most beautiful princess...

He clearly fits the criteria for being someone sociable and prestigious, and attracts women due to the fact his family has money and because he is top five in the high school and popular. He is often a smug and confident type and has great success all around. He's "friends" with the Matsuno sextuplets; Osomatsu, Karamatsu, Choromatsu, Ichimatsu, Jyushimatsu and Todomatsu