Wangui Gamja

Jang Hada, a crop growth scientist, crash-lands in a famine-stricken world…where a priest named Pota mistakes him for their missing king. Declared the "Sun King," Hada is roped into saving the kingdom's failing crops while dodging awkwardly steamy lines and madcap encounters. With a little bit of sweat, potatoes, and some questionable chemistry—can they save the kingdom before it fries?

(Source: Lezhin US)

Note: Chapter count includes a prologue.