I'm a librarian who loves anime, manga, and reading a wide variety of genres.
"Of course, none of the oracles, not even the High Oracle Gyokuyo, could have expected what terrible consequences Keiki's newfound gentleness would have. For it was his awkward kindness that would lead the Glory-King Jokak' of Kei to step off the kingly path and lose the Way."
I'm pretty sure she'd had eventually "stepped off the kingly path" no matter what he did. Keiki being kind wasn't the problem.