Character Description: Kunio Murai
Among the more immature of the students of class 3-4, Murai and his two buddies make up the "punks" of the class.
Murai was scared and furious of Onizuka at first because he was afraid Onizuka would hit on his mother, who's only 27 (Murai is the son of a teen mother). He tries to play practical jokes on Onizuka until he and and buddies ran afoul of a gang. After a wild ordeal in which Onizuka eventually bails them out, Murai gets the message and chills out, especially once it's clear that Onizuka's not pusruing Murai's mother in any serious way.
Character Description: Kunio Murai
Kunio Murai is one of the more memorable characters in GTO. Kunio was part of the class four teacher killer class. He was the macho "I can kick this guy's ass anyday" kid, until Onizuka showed up and taught him a thing or two. Like the rest of the class, he warmed up to Onizuka (sort of). He usually hangs around with his two friends, Fujiyoshi and Kusano.
Kunio's mom was only thirteen when she had him, so you do the math to figure out how old she is. She's pretty hot too, which explains why Onizuka calls Kunio "king of mother complexes". Onizuka even went after Kunio's mom for a while, which only added fuel to the fire between Kunio and Onizuka. While Kunio doesn't hate Onizuka as much as he did before, he adds a pretty good element to the show as the hot-headed, mother-complex kid who wants to get a girlfriend before Onizuka does.