Elsa and Lulu head out as soon as Elsa changes her clothes. Lulu advised her to wear an ordinary dress similar to hers and cover herself with a cloak so that she would blend in and avoid attention from others like what she wanted.
The demon guards also change their attire after agreeing with Elsa's instructions and reason to avoid attracting unwanted attention. They also granted her request to stay far enough from them not to make them look like they were guarding someone.
Since Kurzen's border is heavily guarded and they were sure that she could not escape even if she wanted, they easily said yes to her, not knowing her real intention.
"Your Majesty, you are a real master manipulator. I mean how could you convince them not to stay too close to us and even disguise themselves as commoners?" Lulu exclaimed in amusement.