As usual, Kinugawa and Yufuin are walking to Binan High School together as friends. But after a stop at the convenience store, Yufuin suddenly gets angry at Kinugawa and yells at him. A rift forms between the two, and soon a panic develops over them potentially leaving the Defense Club. Yumoto works blindly to try to get the two to make up, but Naruko and Zaou rebuke him for it. Will Yufuin and Kinugawa ever make up?!
眉難高校ではいつもの通学路で鬼怒川と由布院が仲良く登校していた。しかしコンビニに立ち寄った後、由布院は突如鬼怒川に怒りを覚えるのだった。鬼怒川に対して怒鳴りだし、理由が分からないまま２人の間に生じた亀裂は、ついに防衛部を抜ける騒ぎにまで発展してしまう。喧嘩に巻き込まれた有基たち。有基は闇雲に２人に仲直りを迫るが、鳴子と蔵王にたしなめられてしまう。果たして、由布院と鬼怒川は仲直りできるのか!?
Yufuin começa a brigar com Atsushi por várias coisas. Yumoto quer ajudá-los a fazerem as pazes. Várias brigas entre amigos estão acontecendo na escola. O que será?
鬼怒川和由布院在通往眉难高中的平日的上学路上亲亲密密地一起去学校。但当他们来到便利店附近之后，由布院突然对鬼怒川感到愤怒。他对鬼怒川发出怒吼，而两人之间所产生的原因不明的裂痕，最终发展成要退出防卫部的骚动。有基等人也被卷入他们的争吵当中。有基鲁莽地强行试图让两人和好，结果被鸣子和藏王斥责了。由布院和鬼怒川究竟能否重归于好？
