Zeyu-leusan was the Holy First of the Koru-teusa, who discovered the rituals of ascendency that created the Holy Seven. Leading the Koru-teusa from the First Hytoth, Zeyu-leusan brought guidance and order to the newly emerged Second Hytoth until they sacrificed themselves to end the First Invasion of the Voruteut.
It is from their name the Ortothan cardinal numeral, "Zey" derived from.
SCP-1712-B: It escaped and going to kil- Real name(I guess):Watter Kennel--