Shachiku no Ore, Dragon ni Natsukareta node Pet Haishin wo Hajimemasu: Chibikko Dragon to Monster Bokujou Life

Decades ago, a dungeon suddenly appeared in Japan. Monsters emerged from the dungeon, causing chaos, but thanks to countermeasures implemented by various countries, the threat was greatly reduced, and the world that was once called fantasy became reality for people living today. Living in this reali