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...
Maybe over there or over 
here... I just don't know!
Quizás fue en ese lugar o en 
aquel... ¡No estoy segura!
Quizás fue en ese lugar o en 
aquel... ¡No estoy segura!
Talvez por aqui ou 
por aqui... Eu não sei!