Chibita

チビ太

The sextuplets' rival. Despite being very short, he is the same age as them. His most distinctive features are his large, round eyes and the single strand of hair on his bald head. Oden is his favorite food. He is a very cheeky character who enjoys laughing at people with his signature laugh, Kekeh (ケケッ). He loves to bully and humiliate the sextuplets (though they bully him back) and is terribly stubborn. However, he also has a childlike side and loves animals and flowers. His parents are never seen or mentioned, and he lives with several cats and frogs.
He frequently appears as Iyami's assistant or subordinate, but he is also often against Iyami. In his first appearance, he was a very obedient child with strict parents, but he soon became the bratty character he is now. In the 1988 anime, he is portrayed as an edokko. Like Iyami, Chibita eventually stole the spotlight from the sextuplets and has become one of Akatsuka's most widely recognized characters. In "Osomatsu-kun Grows Up," he has become a clerk, is now 150 cm tall, and has a full head of hair.