I'm worried about the kingdom because if they don't have a security detail hidden in the walls of the saintess when she's meeting with a stranger from the enemy country (and proceeds to talk about high treason), it means that they don't have one, or they no longer have the budget to maintain an efficient one. Which is a big issue.
Also, the same security department that lacks intelligence on the enemy general's appearance even though he's so famous...
In other words, it would be just so easy for a kamikaze to go walk in the palace and kill the king.