The housemaid Micchan tells Migi and Dali that the Ichijo family has a room with water flea wallpaper. They begin attending school to befriend Eiji, the son of the Ichijo family. However, to get close to Eiji, they need to score well on tests and join a top class. The two start studying diligently to boost their grades, but unexpectedly, Migi falls head over heels for a certain female student in the library.
Mrs. Mitsuyama.
.ميتسوياما-سان
Helfen Sie nur bei uns im Haus,
Frau Mitsuyama?
¿Solo limpias en nuestra casa?
¿Solo limpias en nuestra casa?
Vous venez faire le ménage
uniquement chez nous, madame ?
Lei fa la governante solo qui da noi, 
signora Mitsuyama?
Mitsuyama, a senhora faz
a limpeza só da nossa casa?
Тётушка Мицуяма,
вы убираетесь только в нашем доме?