Choujigen Douraku after

The fan sequel to Cream Lemon's iconic episode: SF Superdimension Legend Rall
After the demon king is suppressed, the heroic daughter who passed into legend continues her life. She thinks of the boy she loves while a middle aged village leader seduces her...

Based on the original story but in an alternate world.
While training to become a queen she gets coerced... her purity begins to tarnish as she gets NTR’d.

[Edited from DLsite English]