When Nagomi hears that Chizuru's birthday has already passed, she decides to throw a combined party for both her and Kazuya, and she refuses to take no for an answer!
Ah, okay...
فهمت
Ach so … Wenn das so ist …
Ya veo.
Ah, vaya.
Je vois… Et c’est normal.
Capisco.
Entendi... É mesmo...
Вот оно что… Ладно, встреча 
с бабушкой явно важнее.