Goblin Slayer watching in the distance: "Souka..."
Mommy dearest just demonstrated that even a powerful demon is nothing but a joke if it looks at her son the wrong way.
I can see her listing their battles in a negative way but what about the reverse? What if the reason she is hyper competitive is her way of affection? She doesn't express her feeling but it might be that she does all that to get his attention, but doesn't realize that it frustrates him...