Stay Cool, Kobayashi-san!: A River City Ransom Story

Reiho High School's Big Four is a group of students feared by all other schools among the students there was one who reigned, garnering the title of 'Mr.' from even his classmates…

His name was Kobayashi.

He fought Kunio under Yamada's orders and lost.... However, Kobayashi knew he hadn't fought giving all he had. What on earth is he planning? Depending on your choices you may find the answer.