ひめまるかつおぶしむしであれば
姫丸鰹節虫であれば
hime marukatsuobushi mushideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of ひめまるかつおぶしむし

1. If it were a princess round bonito flake worm; If it is a princess round bonito flake worm

Ba Conditional
Usually Written in Kana