烏羽 からすば たまであれば
karasuba tamadeareba

Noun
Da Copula
no-Adjective

The "-eba" conditional form ("if/when…") of 烏羽玉

1. If/when Karasuha-gyoku (Crow's Feather Jade); If it were Karasuha-gyoku (Crow's Feather Jade)

Ba Conditional