勧善 かんぜん懲悪 ちょうあく げきなら
kanzenchōakugekinara

Noun
Da Copula

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

1. If/when a tale of rewarding good and punishing evil…; A story involving rewarding good and punishing evil…

Nara Conditional