The Dragon's Companion Hides Their Power

Four hundred years ago, the swordsman Kian (Su) sealed the Demon King. Living in hiding, he somehow becomes the mate of a young dragon. The role of a mate is to lay a dragon's egg through marriage. Of course, Kian has no intention of laying an egg for a kid who hasn't even lost his baby teeth. 'The chance is the coming-of-age ceremony! I have to secretly run away then.' On the other hand, Lucien (Gong), unaware of Kian's feelings, tries his best to impress his mate, whom he fell in love with at first sight... "......Want to eat?" 'Don't act generous while giving me what you were eating.' "No matter what anyone says, you're my mate." '......? No one said anything.' "You were born to...