Reiger's so-called "going out for a walk" doesn't mean just strolling around Liz's bedchamber; he actually wants to go outside.
With Yuloli, Liz, and Luna in tow, Reiger directly left the bedchamber.
Originally, such a group leaving Liz's bedchamber smoothly would have been impossible.
After all, Liz was still under house arrest by the King.
If Liz just wandered within the bedchamber, she'd have relative freedom without restriction.
But to leave the bedchamber, permission from the team of knights, all wearing True Knight Medals at the bedchamber's door, would be needed.
If Liz alone wanted to lead the way out, this knight squad would definitely stop her.
However, if it's Reiger leading, that's a different matter.
As the current Sword Saint, who forced King Hemulinp to step back with his power, the knights already knew something about why Reiger appeared in Liz's quarters.
