On a continent in another world, Lu Nan has spent eight years there since transmigrating at the age of twelve. He makes a living selling counterfeits and claims to be an expert potion maker and alchemist. By chance, he rescues a dragon girl who accidentally swallowed a strange stone and passed out. When she wakes the next day, she discovers that her body has changed drastically. The naive dragon girl thinks she must be pregnant. Lu Nan is at a loss, and has no choice but to take the dragon girl along on his business travels. Thus begins the bizarre, magical, fantastical, school-life, mecha-filled, beautiful-girl, great-detective, fake-science, country-romance, hoeing-at-noon, radio-censored, one-two-three-four-five-six-seven, clanking-gun, unlucky-E-rank lancer's everyday adventure.
