My Wife Is a Mermaid Princess

This is a wondrous world, home to Sea Spirit Fish and Sprite Insects that can open up all kinds of marvelous spaces. Green spaces accelerate plant growth, turning one harvest a year into three, with no pests, no reduced yields, and bumper crops every time! Yellow spaces can randomly open up mineral deposits. Copper, iron, silver, and gold are too ordinary? Then how about mithril or magic crystal ore! Purple spaces can randomly yield a magical herb... Blue spaces... Red spaces... Kingdoms at war, orc invasions, races vying for supremacy, natural disasters running rampant... Noble mages, extraordinary knights, savage beastfolk, brave dwarves, cunning goblins, noble elves, greedy dragons, abyssal titans... The unknown and danger, opportunity and wonder. Sea Spirit Fish, Sprite Insects, magical beasts, magical herbs... These are all the fuel for Li Weisi's rise. Of course, Li Weisi has just discovered he's a kept man, so first he'll have to figure out how to keep his meal ticket... (Frontier farming, knightly wars, and races vying for supremacy. This is a slow-burn story, so please be patient!)