On the day of the Tennomifune Academy entrance ceremony, in the class 1-7 classroom, Hanakoizumi Anne (Hanako), Hibarigaoka Ruri (Hibar), and Kumegawa Botan (Botan) are told by their homeroom teacher Kodaira-sensei that they are unfortunate and unhappy students.
The goal of the students of class 1-7, who are burdened by a variety of forms of misfortune, is to become happy.
The three girls have trouble accepting their circumstances, but they're immediately given an unexpected assignment...!
As soon as people find out, 
they always tell everyone.
حالما يعلمُ النّاسُ بالأمر فسينتشرُ في كلّ مكان
Sobald andere das herausfinden,
erzählen sie’s immer weiter …
Cuando alguien lo descubre,
no tarda en contárselo al resto.
Cuando alguien lo descubre,
no tarda en contárselo al resto.
Tous les gens qui l’apprennent
se moquent de moi.
Non appena qualcuno lo scopre, 
la voce si sparge in fretta.
Quando as pessoas descobrem,
 sempre contam para todos.