Sakon and his older brother Ukon are twin brothers from Otogakure and the apparent leader(s) of the Sound Four. Described as spiteful and confident, Sakon enjoys fighting and likes bad-mouthing the opposition. When in battle, Sakon likes to prolong the fight by toying with the opponent and using unnecessarily powerful techniques to show off. This tendency of Sakon's causes him to slow down the rest of the group whenever he gets interested in an opponent. Likewise, Ukon is described as greatly self-confident but is more quick-tempered than Sakon. The twins share a good relationship but are capable of viewing each other objectively during combat since their personalities differ from one another. Despite Sakon being more active than Ukon and is usually the main body, Sakon acknowledges his older brother's authority and faithfully obeys any orders Ukon gave him.