Can't read what the Aya says because she is too fast.
Sorry for the necrobump.
Anyway, that's not Aya but Tewi saying 「かかったな!?アホがっ!!!」. Notice Tewi's ear appearing from the shadow at the top of that frame. The said phrase is a JoJo's Bizarre Adventure reference. Rough translation: "Caught me!? You fool-!!!"