Mudo Kirihara

Mudo is a boy in Sunao's class. He took an early liking towards Potemayo, though has not been able to even pet Potemayo. On Valentine's Day in his second year of junior high school, he accidentally gave chocolate to Nene, which later caused him to become her slave for a time. Mudo is in the cheerleading club, and will dress up in a full female cheerleader uniform during club activities. A running gag is Mudo getting severely hurt, in many cases by the exploits of Guchuko. He seems to thinks Nene is cute when she does not talk at all.

(Source: Wikipedia)