The Sket-dan get a new assistant homeroom teacher (who wants everyone to call her, Onee-san), but she's a klutz and is upset she can't be a good role model for the students, so the Sket-dan ask Chuu-san to help with some of his strange drugs. Later, Switch goes through some old inventions of his that didn't work out as intended...
But then, one boy, Daichi-kun disappeared, 
so everything is super-yabas!
¡Pero entonces Daichi-kun desapareció, 
y todo está súper-yabas!
¡Pero entonces Daichi-kun desapareció, 
y todo va súper-yabasu!
Mas daí um garoto, o Daichi, 
desapareceu! É super yabas!