#they're basically like

I haven't thought up names yet however, here I go:

There's this young, kinda effeminate, king and this woman who's his most trusted adviser and most skilled knight, but no one is can know that she's a woman, (for fear of backlash and probable accusations of witchcraft) so she wears her armour everywhere when she's in public and everyone is tolled that she's a he.

And then an assassin who plans to murder the king captures her while she's out questing and steals her armour to take her place, leaving her imprisoned somewhere guarded. He obviously finds out she's a woman, and so too assumes she used witchcraft to gain her skills, and doesn't invest much time in making sure she's imprisoned thoroughly after he's searched her and taken anything that she could have enchanted. So naturally, as she has never dabbled in the arts her entire life and rose in the ranks on skill alone, she breaks free easily.

Naturally the king knows that the assassin is not his trusted knight right away, but he can't admit to anything, and so he plays along and attempts to delay his assassination until his Knight comes for him.

Because his Knight can't simply show up at the castle and expect everyone to believe her story, even if the king supports her, she devises a plan, and so pretends to be a wicked enchantress and kidnaps the king, knowing full well that it's only a matter of time before her imposter is sent after them.

The young King plays along easily and essentially spends the next while on vacation pretending to be imprisoned by the "Evil Enchantress" in an abandoned tower in the forest. Because his Knight can defeat everyone else in his guard easily, they essentially just bide their time until the imposter shows his face and his Knight can steal back her armour and pretend to return victorious after rescuing the King.

Basically they sell the story that the Knight had been kidnapped and replaced by one of the wicked Enchantress' minions, and was grievously injured in her dungeons, however the King nursed "him" back to health and "he" was able to defeat the assassin when he returned to report to the Enchantress, who, unfortunately, escaped.