Continuity/Tanada House of Earth

Tanada House of Earth
The Tanada House of Fire Quest involves recovering special scrolls that belonged to the houses of Air, Earth, and Water. Tanada Sajo explains that, "because Aerbax succeeded in corrupting the Masters of Air, Earth, and Water, he was able to steal the scroll of each House." However, the lore of the Tanada House of Earth Quest implies that the House of Earth, and specifically its leader Master Seijuro, are unaffected by the recent corruption of the House of Air.