[It would just be a funny thread. Imagine Eustace asking Hayame her thoughts on birthdays.]

I'm not sure.

[...

He thinks momentarily about Hayame as a person, then rectifies his statement:]

Probably not. She was looking for assistance with how birthdays are performed. I think she intended to surprise someone with one.

[Her boyfriend. Her and Eustave already have so much in common now.]

If you want party hats.