"Laid-Back Camp" centers around the outdoor adventures of a group of high school girls who share a passion for camping. The story primarily revolves around Rin Shima, a solitary and experienced camper who enjoys solo trips to scenic locations, and Nadeshiko Kagamihara, an energetic and cheerful girl who becomes fascinated with camping after a chance encounter with Rin. Their paths cross when Nadeshiko, lost and cold during a solo trip to Mount Fuji, is helped by Rin, who shares her campsite and food. This meeting sparks Nadeshiko's interest in camping, leading her to join the Outdoor Activities Club at her school.

The Outdoor Activities Club, initially consisting of only two members, Chiaki Ogaki and Aoi Inuyama, welcomes Nadeshiko, forming a trio. Chiaki is the club's president, passionate about camping but often overenthusiastic, while Aoi is more laid-back and serves as the voice of reason. Rin, though not an official member of the club, frequently joins the group on their camping trips, balancing her love for solitude with the camaraderie of her new friends. Together, the girls explore various camping spots across Japan, from lakeside campgrounds to snowy mountain retreats, learning about outdoor skills, cooking, and the joys of nature.

The narrative emphasizes the practical aspects of camping, such as setting up tents, cooking meals over a campfire, and navigating outdoor challenges, while also highlighting the personal growth and bonding experiences of the characters. Rin's expertise and calm demeanor contrast with Nadeshiko's boundless enthusiasm, creating a dynamic that drives much of the story's charm. The series also introduces other supporting characters, such as Ena Saitou, Rin's childhood friend, who occasionally joins the group, adding further depth to their adventures.

Throughout the series, the girls encounter various seasonal landscapes, from cherry blossoms in spring to snowy vistas in winter, each trip offering a unique backdrop for their experiences. The story balances lighthearted humor with moments of introspection, as the characters reflect on their individual motivations for camping and the sense of fulfillment it brings. The manga also incorporates educational elements, providing readers with practical camping tips and insights into Japanese camping culture.

"Laid-Back Camp" is a slice-of-life series that celebrates the simplicity and beauty of outdoor activities, focusing on the friendships formed and the personal discoveries made through shared experiences in nature. The narrative progresses at a leisurely pace, mirroring the relaxed atmosphere of camping, and remains grounded in the everyday lives of its characters, making it an accessible and enjoyable read for fans of the genre.