Rin Takanashi, a thirty-year-old caregiver whose passions include camping, fishing, and tabletop role-playing games, is suddenly swept into a classic otherworldly summoning. She arrives in a fantasy kingdom alongside a beautiful high school girl, both bestowed with the title of saint. While the younger girl receives a hero's welcome, Rin's unique abilities are deemed worthless. The prince, unimpressed by her Survival skill and her ability to summon a Motor House, a fully-equipped modern camper van, immediately exiles her as trash.

Far from being useless, Rin discovers her skills are exceptionally well-suited for navigating the wilder, harsher environments of this new world. Unbothered by her banishment, she decides to embrace the freedom she has been given. Activating her hidden abilities, she summons her dream camper van and sets off on a solo journey across the countryside, determined to pursue her true passion: exploring the landscape and cooking delicious meals.

Her solitary road trip takes an unexpected turn when she encounters Vil, a shrewd dragul demon and the leader of a renowned adventuring party called the Gluttony Table. After sharing a meal with him, Rin finds herself unexpectedly allied with his group. The adventurers, impressed by her culinary prowess and her mobile home’s utility, become her regular companions. The party quickly grows to include Senon, a magic-wielding elf with a surprising passion for meat; Aria, a voluptuous spider-person and a self-professed glutton; and her devoted husband Ed, a magitech alchemist.

A distinct rhythm defines Rin’s new life. While her companions venture into dungeons and take on dangerous quests, she often remains behind with the camper van, focusing on camp chores, fishing in nearby rivers, and preparing elaborate feasts. The adventurers return from their exploits bearing rare and exotic ingredients, which Rin transforms into extraordinary dishes, blending her otherworldly cooking knowledge with the unique produce of the realm. Her meals become the highlight of their shared journey, forging a bond stronger than any magical contract. The narrative follows their leisurely exploration of the parallel world, filled with detailed descriptions of camping techniques, cooking, and the joy of outdoor living. However, the road ahead is not without its surprises, and the story hints that their peaceful journey may eventually veer in a more dramatic direction than they anticipate.