I'm the Villainess, So I'm Taming the Final Boss, Vol. 8 (light novel) — Sarasa Nagase

Surprise sequel!Chaos erupts as a mysterious boy who claims to be Claude's son appears out of nowhere and immediately picks a fight with his father! It seems like the fate of the future is in danger thanks to Aileen's game-defying deeds, and the future isn't all too happy about that. After learning from Lilia that there are even more releases in the series, Aileen and her plucky band will have to navigate complicated events she's never seen before if they want to ensure a happy ending not only for themselves, but for their children's generation as well!