ひめ まる鰹節 かつおぶし むしでしょう
hime marukatsuobushi mushideshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of 姫丸鰹節虫

1. Probably a princess round bonito flake worm.

Polite
Presumptive
Conjecture