Guide

The Guide is the Position that leads the way for the team. A guide usually works as a team with a Light Bearer. While the Light Bearer shines light upon the dark surroundings, the guide may lead its team through the most advantageous route. However, if the Guide is travelling on a safer path and doesn't need a Light Bearer, then he or she probably uses a device(might be something other than a Pocket) to illuminate the surroundings(Ch 2).

Guides have excellent analysis skills, and an A-rank guide can determine the power of an individual just by looking at them. However, Evan Edrok failed to assess Baam's qualities and thought of him as average.

Guides seen so far in the series have displayed an uncommon intuition as to what was going on.

Yu Han Sung explained to Rachel that Guides are the ones "blessed by the Tower with the knowledge of all the paths within, to assist in its navigation, and, at times, are even able to foresee the future and change it. (Ch 77)"

It's unknown if a Guide can be a freelancer or if all Guides are personal Guides.

Teaching someone to walk their path
A Guide can only teach the path to those who can walk it(Ch 3). For example: Evan Edrok didn't want to help Baam during the Guardian's Test, on the 1st Floor because an ordinary person would die if he tried the solution(Ch 3).

Like navigating a ship, a person who is Guided likely learns how to choose the better routes, out of the many possible routes. However, they must be willing to accept the path might end in failure, disappointment or even in their death.

Those worthy of being Guided, have to walk the path with their own efforts and decisions. Even Evan Edrok won't help Yuri Zahard all the time because she's responsible for her own actions which determine her fate and her path in life.

Unless a person is considered worthy enough to be entitled to a personal Guide, the Guide may leave them for someone else when their job is done. When Hwa Ryun was done showing Rachel how to walk the right path(probably to become a heroine), she left for Baam(Ch 77). When she was done with Baam, she likely left him for someone else. She probably spent about 1 month with Rachel and possibly, the same time with Baam. Whereas Evan Edrok is still with Yuri Zahard and the same goes for Alumnik Edrok and Repellista Zahard.

Known Guides

 * Evan Edrok - Currently Guiding: Ha Yuri Zahard (Partners)
 * Hwa Ryun - Formerly Guided: Rachel and Twenty-Fifth Baam
 * Alumik Edrok - Currently serving as Butler to: Repellista Zahard