竜宮 りゅうぐう じょうだったら
ryūgūjōdattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 竜宮城

1. If it were Ryūgū-jō; If Ryūgū-jō existed; When it's Ryūgū-jō

Tara Conditional