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...!
but now an unfamiliar and creepy 
girl is laughing at you, as well.
بل ثمّة فتاة غير مألوفة ومُريبة تضحكُ عليكما كذلك
ihr werdet auch noch von einem
fremden, komischen Mädchen ausgelacht.
sino que además acabé
riéndome de ustedes.
sino que además acabé
riéndome de vosotras.
je conçois bien
que l’inconnue répugnante que je suis
ma è anche una sconosciuta
 molto strana che ridacchia.
mas agora a mesma menina assustadora
 está rindo de vocês, também.