Adventuring knight Laios Touden leads a small party through a seemingly endless dungeon, a subterranean maze full of dangerous monsters and precarious traps. Through the use of advanced magic, an explorer can sometimes be resurrected, allowing them to learn from past mistakes and give traversing the dungeon another go. However, when a powerful dragon eats Falin, Laios' spellcasting sister, she sends her brother and his companions back to the beginning to save them from permanent ends. Though strapped for cash and equipment, Laios resolves to fight his way through the dungeon and rescue Falin before she can be digested by the dragon. Despite some of Laios' allies abandoning him, two remain by his side: elven mage Marcille Donato and halfling locksmith Chilchuck Tims. Due to their lack of funds, the party faces the daunting prospect of starving before being able to complete their quest. However, they find salvation in Senshi, a dwarven warrior with a penchant for cooking and safely eating defeated monsters. With Senshi's culinary expertise, Laios and his companions struggle through the dungeon while learning about gourmet dining—and each other—along the way. After the Golden Kingdom is sunk underground by an insane magician, its king emerges, promising all of his treasure to any who defeat the magician, before crumbling to dust. Guilds are spurred on by this promise, traversing the labyrinthine dungeon in search of the magician. Laios, the leader of one such guild, encounters a dragon that wipes out his party and devours his sister Falin. Despite having lost the entirety of their supplies and belongings, Laios along with Marcille, an elven healer, and Chilchuck, a halfling thief, immediately reenter the dungeon, determined to save Falin.