Floor Master

Background
The Floor Masters are controllers of a layer of the Little World. They are an arrangement gift players and species have in place where an individual accepts the responsibility of protecting the peace, ensuring that lower-end communities can grow. These individuals are also entrusted with the duty of leading the charge against a Demon Lord, should one appear, as they greatly disrupt the peace. Floor masters are given a number of prvileges for accepting this responsibility.

Northern Floor Master
One of the northern floor masters, the head of Salamandra, is shifting power to its progeny. Sandora (daughter of Salamandra) is both a leader and a floor master.

To learn more about the North, visit the North Side.

Nothing is currently known about the wother floor master other than the Alliance name being Onihime(Ghost/Demon Princess in english. But sounds cooler as Onihime.鬼姬) It isn't explicitly said but it was hinted here and there when word was out that Bull Demon King had rushed to the aid of Onihime Alliance in the battle against the Demon Lords and had not returned. Or when it came to the naming the Floor Masters that currently existed, Onihime Alliance was also mentioned.

From here, we can also see that there can be more than one Floor master for each sector.

Eastern Floor Master
Shiroyasha is the first known eastern Floor Master who is referred to as a Demon Lord. She is far more skilled than the northern floor master.

As of Light Novel volume 5, she has passed on her duties to Saurian Demon King, Kouryuu, after regaining her divinity.

To learn more about the East, visit the East Side.

Southern Floor Master
The southern floor masterwas defeated by a Demon Lord that lived in the 7000000 Outer Gate and his current whereabouts are unknown.

Volume5 is when the New Floor Master got elected by means of a bet in Gift Game format:

New Floor Master: Sala Doltrake. Draco Greif Alliance representative, Leader of [One Horn].

Western Floor Master
It will only be revealed later. Volume 10.