Olivia had completed so many various side quests that she had grown highly proficient at it. Helping a prince start an uprising was child's play for her. Verden was a tiny kingdom. It was weak and insignificant.
Of course, as the little princess of Cintra, Olivia was very familiar with the intricacies of what used to be her neighboring kingdom. She was actually rather grateful for the weakness and incompetence of its king. If not for him, she might truly have been forced to get married to Prince Kistrin. It wasn't like she could not extricate herself from such a situation -- it was just such a hassle. Wouldn't she be giving His Royal Highness Prince Kistrin the "broken engagement protagonist" buff?
That way, this side-character who had little going for him, other than his minuscule bravery might just snap…
Passive side-characters were unpromising and boring. On the other hand, traumatize just about any commoner, and they might rise to the occasion.
