noun
A theatrical work that promotes virtue and punishes vice, often with a clear moral message.
この勧善懲悪劇は、悪者が最後に必ず罰せられる筋書きだ。
This morality play has a plot where the villain is always punished in the end.
Compound of 勧善 (encourage good), 懲悪 (punish evil), and 劇 (play).