Naho got into a fight with Kakeru on New Year's Eve, and never managed to apologize to him before he passed away. At least, that's what the letter from the future says. However, Naho now believes that she's capable of dealing with whatever may come up, and faces New Year's Eve head-on.
If that's the case, you don't have to worry.
.لا داعي للقلق إن كان هذا ما في الأمر
Wenn das der Fall ist,
musst du dir keine Sorgen machen.
Si es eso, no te preocupes.
Si es eso, no te preocupes.
Si c’est le cas, 
tu n’as pas à t’inquiéter.
Se la pensi così, sta' tranquillo.
Se a sua preocupação for
 essa, fique tranquilo.
Если да, то можешь не волноваться.