Karamatsu Matsuno

As with his brothers, Karamatsu has short, dark hair with two cowlicks sticking up in the back. His distinctive characteristics are that he has thicker eyebrows, he wears blue as his casual wear and often has the sleeves of his hoodie and shirts rolled up to his elbows

One of his signature outfits is a leather jacket with jeans and sunglasses. His most prominent accessory is his blue sunglasses, which his brothers break frequently. Karamatsu also really likes to wear clothes with sequins and clothes (sometimes outdated) that make him look cooler.

Karamatsu is shown to be confident and full of energy and "charisma", yet is often oblivious and clueless to what is actually going on around him. He tends to take everything presented to him very, very seriously, and often speaks in a drawn-out, poetic fashion.

He desperately tries to be cool using his old-school razzle dazzles and black leather jackets, in an attempt to capture the hearts of any of those he assumes to be his admirers. These attempts, more often than not, backfire horribly. Karamatsu often speaks in confident one-liners that are meant to make him sound cool and awesome, but little to none of these lines are actually entertained by others and are usually simply ignored, much to his dismay. He always seems to bounce back in the end, however, showing his determination and dedication to the ever-confident Casanova front he puts on. His brothers usually call him "painful".

Karamatsu is actually timid and will do as told if he's put under even the tiniest of pressure. He claims it to be because he's "the nicest person in the world", only to deadpan that he really is just easily intimidated. Karamatsu has mixed feelings over how his brothers treat him,

As evidence of his shyness, his deep voice becomes higher when nervous; this could mean that either his voice genuinely gets higher when under pressure or the higher voice is his "real voice".

He is derogatorily referred to as "Kusomatsu" / "Shittymatsu" by brothers on different occasions, particularly Ichimatsu.

Despite all this Karamatsu is a compassionate man who truly loves his family and would do anything for those he loves. He is a romantic man who wants to find someone who will not ignore him and listen to him and possibly be vulnerable.

Karamatsu may not be used to receiving affection in return making him nervous if he catches him off guard but he will definitely be very grateful.

He likes to play the guitar and he is good at it, as well as singing. It is also suspected that he makes his own clothes

He speaks in a flowery way, with lots of compliments and exaggerating a lot when he's in that cool mode, he also use Spanish words in the middle of his sentences in an attempt to sound exotic.

His older brother is Osomatsu and his younger brothers are Choromatsu, Ichimatsu, Jyushimatsu and Todomatsu. Being Karamatsu the second sibling of the family

Chibita is one of his best friends.