I'm also noticing a ton of fairly racist stuff in this thread about nomadic/hunter-gatherer life styles being shit and extremely primitive. Neither of these statements are especially true and are mostly borne out of a eurocentric viewpoint that sees most of the movement from the past to the present as a journey from bad conditions to good conditions. Hunter-gatherer life was really only worse for elites, not for most people. People generally didn't die in the cold and access to food stuffs year round was much worse for agrarian societies for a fairly long time. What made agrarian society so useful was that you could support larger and specialized populations - but this doesn't make it better, just better able to conduct war.
Both weilus are agrarians society, so your aside is irrelevant.
Her liege was silent for several moments as she sipped from her cup. "It is in truth, a holdover from the days of Weilu rule. Their founder Tsu the Diviner, mastered the secrets of weather and seasons, and allowed his people to grow their food from the earth. Tea plants were among the first domesticated this way. Those early blends were of practical use… they fortified the drinkers health and warded off sickness."