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...!
Hold still! Don't move a muscle!
تمسّكي جيّداً ولا تحركي ساكنة
Halte still!
Beweg dich keinen Millimeter!
¡Quédate quieta! ¡No te muevas!
¡Quédate quieta! ¡No te muevas!
Ne bouge pas, d’accord ?
Reste immobile !
Non muoverti! Resta perfettamente immobile!
Aguente firme! Não se mova!