勧善 かんぜん懲悪 ちょうあく げきであれば
kanzenchōakugekideareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of 勧善懲悪劇

1. If it's a tale of rewarding good and punishing evil; If it were a tale of rewarding good and punishing evil

Ba Conditional