Leona was a Chaos Girl whose identity was already exposed. She was also one of the rare weaklings among the Chaos Girls… Actually, her power level wasn't that bad, but when compared to her seniors who were several centuries old, along with the Chaos Girls who had survived the previous, two previous, or countless previous Holy Wars, Leona was indeed far too weak.
It was likely that even her ancestor who was a God wouldn't be able to protect her from Karwenz. The God of Sword and Thunder was just a newborn Low God, after all. He was far weaker than a Main God. Thus, I had scammed and kidnapped Leona to Bardi also as a way of protecting her.