Your Farmer Husband Is The Last DragonKnightEpisode 4

Dragon knight Sam goes to Kalon for a betrothal. Scorned as a bumpkin, he hides his power. Princess Sophia rejects him; sister Anna weds him. As a necromancer cult rises, their pact becomes love. Cult lord Malachar, who killed Sam's parents, hunts him. Poisoned, Sam bonds with Anna: her royal blood and dragon fire wake his true form. He burns Malachar, avenging his family and saving Kalon. Hidden strength, unlikely love – a country husband none should provoke.