Original Characters:

Boys

Nakahara Yoichi: Ultimate Farmer
Ikeda Torio: Ultimate Spelling Bee Champ
Kawahara Kenji: Ultimate ???
Sawaya Saburo: Ultimate Collector 
Nakayama Mitsuhide: Ultimate Doujin Artist
Kitagawa Eijiro: Ultimate Sport Player
Fukushima Sachi: Ultimate Boyscout

Girls

Teshima Konami: Ultimate Cheerleader
Sugita Hibari: Ultimate Bodybuilder
Matsuura Tetsu: Ultimate Piano Player
Muranaka Kinuyo: Ultimate Knitter
Shiro Chizu: Ultimate Conductor
Eguchi Hatomi: Ultimate Barber

High school fun!