Rulers gain the authority to rule a Floor with the permission and consent of a Guardian. Since most of the Floors were conquered by Zahard and the 10 Families, the vast majority of Rulers are affiliated with the Zahard Empire. However, it is worthy to note that of the 134 conquered Floors, only two are ruled by a High Ranker that is not a member of one of the 10 Great Families or the Zahard Family. Those Floors are the Seventy-Seventh Floor ruled by Baek Ryun and the Second Floor ruled by Evankhell. Also, there are two conquered Floors of the Zahard Empire with no Rulers. Such Floors are the First Floor, whose only inhabitant is Headon, and the 43rd Floor since the Floor's Guardian was killed by Enryu and a Ruler cannot rule without a Guardian.
Since the authority of a Ruler is granted by a Guardian, they cannot act against the Guardian's wishes. Though the current Ruler manages the tests of a Floor, that doesn't mean that the Guardian's authority has wavered. The Ruler (and therefore their subordinates) are only acting on the Guardian's behalf. Despite the power and influence of the Zahard Empire, all staff (including the Ruler) on the Floor are still subjected to the Tower's rules in the testing Floors of the Inner Tower.
Also, the Ruler has the right to make absolute decisions in regards to the tests on their Floor. However, if the Guardian objects, the Ruler must obey the Guardian's wishes because all rules that were created by authority of the Ruler of the Floor and his subordinates are meaningless in front of a Guardian's whims.
Should a High Ranker show up at a Floor rampaging and causing trouble, it is customary for the Ruler of the Floor to show up and intervene in the process. The reason why Ha Yuri Zahard and her team were able to leave the Second Floor unharmed was because of Evankhell's absence, otherwise, she would have faced heavy casualties.
As the 10 Great Families rule most of the Floors in the Tower, the Middle Area's residents have made several altars dedicated to the Rulers of the Floors. Such altars are usually located at the highest point in the region.
- Evankhell (Second Floor) (Fired)
- Khun Royale Elliot (44th Floor)
- Baek Ryun (77th Floor)
- Arie Hon (100th Floor)
- Zahard (134th Floor)
Notes and Trivia
- Rulers may be referred to differently, depending on the Floor (e.g. "President", "Boss", "Chief" etc.) 
- ↑ 1.0 1.1 SIU's blog (Translation)
- ↑ Ch.58: 2F - Last Examination (2)
- ↑ Vol.2 Ch.191: 38F - Hell Train: The Dallar Show (20)
- ↑ Ch.71: 2F - Last Examination (15)
- ↑ Vol.2 Ch.194: 38F - Hell Train: The Dallar Show (23); Blog Post