ひめかつおぶしむしでしょう
姫鰹節虫でしょう
hime katsuobushi mushideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of ひめかつおぶしむし

1. Probably a princess bonito flake worm.

Polite
Presumptive
Conjecture
Usually Written in Kana