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...
Thanks to the Sket-dan, I was chosen 
as "Mr. Kind" for class 2-C.
Gracias al Sket-dan fui elegido 
como "Sr. Amable" de la clase 2-C.
Gracias al Sket-dan fui elegido 
como "Mr. Amable" de la clase 2-C.
Graças ao Sket-dan, eu fui eleito 
o Mister Gentileza da turma 2-C.