The students of Kaimei High are going on a class trip, but first, they have to participate in a rope skipping competition to see which class gets the best rooms. Saaya doesn't have an athletic bone in her body, so is worried she's going to doom her class to the worst rooms of all, until the Sket-dan tries teaching her how to skip! Then, the students are on their way, but in the back of one bus, Chuu-sensei is playing mad scientist again, and this time his victims are Bossun, Himeko, and Tsubaki!
What are the other three? I'm curious, 
so explain all the damn things!
¿Cómo son los tres restantes?
¿Qué son las otras tres? ¡Tengo 
curiosidad, explíquelo todo!
O que são esses outros três? Agora
 estou curioso, então explique!