After an insane magician sinks the Golden Kingdom underground, its king emerges, promising all his treasure to anyone who defeats the magician, before crumbling to dust. This promise spurs guilds to traverse the labyrinthine dungeon in search of the magician. Laios Touden, the leader of one such guild, encounters a dragon that wipes out his party and devours his sister, Falin. Despite losing all their supplies and belongings, Laios, along with Marcille Donato, an elven healer, and Chilchuck Tims, a halfling thief, immediately reenters the dungeon, determined to save Falin. With time being of the essence, Laios suggests the taboo of eating dungeon monsters as a way to gather supplies. As they prepare their first meal in the dungeon, they are stopped by an on-looking dwarf named Senshi. An enthusiast of monster cooking, he helps them prepare their monster ingredients for safe consumption. After learning of Laios' circumstances, Senshi expresses his desire to cook a dragon and joins their guild, thus beginning their food-filled foray into the dungeon together.