"The world is cruel."

It's July 19th, and summer break starts tomorrow. Bocchi has... not become friends with her entire class. So she needs to make one more friend today, even if it's only one...
Why are you so happy?
لماذا أنت سعيدة جدًّا؟
Warum strahlst du so?
¿Por qué te alegras tanto?
¿Por qué te alegras tanto?
Perché quell'aria felice?
Por que está tão feliz?
Ты чего такая счастливая?