High school teacher Eikichi Onizuka (AKIRA) is sent to his alma mater of Shounan, which has been purchased by Meishuu Academy. He reunites with his former teacher Fuji, and enjoys his old school, but Director Sakurai tells him she wants him to go on a rampage. It seems like her words mean something...

Taichi Usami of Class 2-A has been diagnosed with ADHD. His father decides to transfer him to a school with a support program for students with disabilities against the wishes of his mother. The school has a dorm and Taichi will have to live away from his family. Onizuka is opposed to this, but a shocked Taichi starts attacking his classmates, and his father becomes even more determined to transfer him.

Satsuki Yurihara of Class 2-A meets an attractive young man on the beach named Nori, and falls in love. She breaks up with her boyfriend Tokuyama, a fellow classmate, immediately, and it falls to Onizuka to calm him.

Kiritani was the ace of the basketball team like Serizawa, but he suddenly decided to quit and hang out with a group of thugs. He no longer gets along with his former classmates. Onizuka speaks with his father to find out why, but then he gets word that Kiritani has been arrested.

The drama festival, where classes compete to have the best play, is coming up. Honami tells him about what happened with it last year, and he learns that Tsugumi and Nozomi of the drama club have been the leading the class the past few years. When Tomomi and Kanako find pictures of themselves that have been shot with an airgun, they blame the military-loving Numajiri, and ruin his airgun with a cruel trick. Numajiri decides to take revenge.

Videos of a mysterious female singer are becoming popular. The class becomes excited when they realize it's their fellow student Hiiragi. Hiiragi is the oldest of four siblings who lost their father at a young age, and has taken care of the children while her mother works. She tries out for an audition to become a professional singer, but her mother is opposed to it.

The class is starting to revolve around Onizuka and Honami is upset that she isn't getting closer to the students. She finds Kazuki sitting by the beach, and when she talks to him he tells her that his girlfriend Ayuna is pregnant.

Basketball ace Serizawa goes to the doctor with a nasty headache and finds out he has a chronic subdural hematoma. He's told he'll be fine if he's careful, but instead he rushes back to play basketball.

Onizuka realizes that Meiri is acting strangely, and asks Honami why she never comes to class. A year ago, she was in a romantic relationship with her old teacher. She was violently bullied for this incident, and stopped coming to class at all.

Director Sakurai takes Ayuna to the hospital with bad stomach pain. She's been hiding the fact that she's still pregnant from everyone, including her boyfriend. Meanwhile, Honami learns her brother, Sawamura, was best friends with Onizuka 10 years ago, before he died.