They both have the punk/yanki type boys with pipes. The main characters are both females. Same idea of one female among a full class of males. The female tries to aid the males. The males constantly try to show their manliness and often refuse help.
Same idea of a class of troublesome students, and an optimistic person (in gokusen a teacher, and asuko march the only female student) who help turn everyone's lives around. Scheme of the episodes it similar, that it goes through various characters and shows the efforts of protagonist and their kind hearts that bring resolution to the issue.
Serinuma Kae is a chubby high school girl who loves BL manga. One day her beloved character dies, and the girl falls into depression. For a long time, she cannot even eat, which leads to significant weight loss. But to her own surprise, the updated Serinuma becomes very popular at school, and she immediately has four handsome admirers at once.
Nao Yoshino has failed the entrance exam for her target high school. Devastated and defeated, she enrolls in a technical high school called Kenritsu Asuka Kougyou Koukou, or "Asukou" for short. Out of the 148 entering freshmen, only three are girls, and Nao is the only one in her class. Surrounded by boys and stuck taking part in dirty, challenging, technical classes that she doesn't want to take, Nao finds herself feeling frustrated and alone. But when her male classmates, one by one, begin to come around her and lift her up, Nao learns...maybe her new school's not so bad after all.