竜宮 りゅうぐう使 つかいだったら
ryūgūno tsukaidattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 竜宮の使い

1. If/When [one] is a messenger of Ryugu Palace.; If [one] were a messenger of Ryugu Palace.

Tara Conditional