Jyushimatsu

He is usually seen with his mouth wide open, smiling happily, with his tongue visible. He also has one cowlick. He is usually seen wearing a yellow hoodie with stretched sleeves, blue swim shorts and white socks. At home, he wears yellow slippers.

Like the rest of his brothers, he occasionally can be seen wearing a light blue blazer, gray slacks, and black dress shoes when they all attempt to dress formally.

In the Jyushimatsu Matsuri episode, it is suggested that Jyushimatsu's current look came about at age 16 (though he was also shown to be constantly smiling as a newborn, standing out from his brothers in being awake while they slept). This is elaborated on in the movie, though in a different and extended way for how he achieved his current look and attitude.Jyushimatsu is the strange one and the most child-like of the Matsuno brothers. He is generally happy, energetic and over-excited almost all the time, and is rarely seen in a serious state. According to Ichimatsu, Jyushimatsu also has trouble blending in with other people due to his extreme child-like personality and his bizarre attitude. This is to the point where the others speculated that he may have the most hidden darkness among them, and even Ichimatsu confessed to believing so until he realized "he's just Jyushimatsu" and cannot necessarily be classified (being even in his own "genre").

Despite this, he can display the most kindest among the sextuplets through his outgoing personality, and was willing to help Ichimatsu find ESP Kitty. However, if it is cold or something else sets him off, Jyushimatsu's anger and other unreasonable behavior can be most dangerous. In other times, he will simply do whatever he wants with no logic to it except whatever may be natural in his own mind.