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...!
There's no way you can measure 
someone's luck with this.
من المُحال أن تتمكّني من قياس
حظّ شخص من خلال هذا
Als ob man so das Glück
einer Person bestimmen könnte.
Es imposible que esto
determine nuestra suerte.
Es imposible que esto
determine nuestra suerte.
Comme si ça voulait dire
quelque chose…
Ma no, non si può misurare 
la sfortuna di qualcuno così...
Não dá para medir a sorte de alguém com isso.