Eikichi Onizuka is a 22-year-old former leader of the notorious biker gang, the Holy Emperor. He has a rugged, intimidating appearance and an imposing physique. His life took a drastic turn when he fell in love with a kindergarten teacher. Onizuka decided to become a teacher himself, seeking a chance to be close to his crush. He enrolled in a teacher's training school and eventually became a high school teacher. Onizuka has a rough exterior but a soft center. He genuinely cares for his students and strives to connect with them on a personal level. Onizuka is a bit of a pervert, often finding himself in awkward situations. Despite this, his students adore him, and he would do anything to protect them. Onizuka still has a few tricks up his sleeve from his biker days, making him a formidable opponent. He has an unforgettable laugh and a quirky sense of humor. Onizuka's rough exterior hides a heart of gold, and he will stop at nothing to help his students overcome their struggles.