かわのなつだいだいでしょう
川野夏橙でしょう
kawano natsudaidaideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of かわのなつだいだい

1. Probably Kawano Katsuren.

Polite
Presumptive
Conjecture
Usually Written in Kana