The path to becoming a fine wife begins with being an accomplished cook—at least, that is what Ryou Machiko's late grandmother had led her to believe. For a middle schooler, Ryou's cooking skills are incomparable; but recently, though Ryou's food looks appetizing and smells inviting, the taste has not been delicious. Just when the dejected art student comes to terms with the possibility that she might continue living alone for the rest of her life, her aunt tells her that Kirin Morino—Ryou's second cousin—will begin staying with her every weekend since the younger girl has joined a cram school in Tokyo and aims to attend the same school as Ryou. Surprisingly, with her cousin's arrival, Ryou finds that her cooking has vastly improved—apparently, it is not her prowess in the kitchen, but the sharing of the experience with those closest to her that seems to make the flavors shine.

After her parents are killed by bandits, young Sarasa Feed is sent to an orphanage where she learns about the prestigious world of alchemy. Determined to follow in her late parents' footsteps and become an independent business owner, she enrolls at the Royal Alchemist Academy to train and get certified as an official alchemist. Five years later, Sarasa graduates from the institution and nearly achieves her dream before realizing that she lacks the funds to do so. Left with little choice, she makes do with a low-priced storefront in a town situated far away from the bustling capital. Despite the threat of treacherous terrain and dangerous monsters in the remote countryside, Sarasa begins her exciting new life as an alchemist.

When Isaku Senagaki was five years old, the death of her parents left her to be raised by her yakuza boss grandfather, Tasuke. Now preparing to enter high school, Isaku is determined to start fresh with an honest attempt at having a normal high school experience. All she wants is to be able to make friends and find love without being defined by her connection to the yakuza. But Isaku's dreams are thwarted when her overprotective caretaker, 26-year-old Keiya Utou, takes it upon himself to enroll in Isaku's school by bribing the school administration. While Isaku yearns for a reciprocated love, she is trapped in a one-sided infatuation with Keiya, who only sees her as the boss's granddaughter he helped raise. Her longing for a normal life becomes a constant battle, and breaking free from her heart's grip is far more challenging than it sounds, as Keiya's overprotectiveness and disregard for her boundaries make it almost impossible to move on.

As time marches forward, Rin Shima, Nadeshiko Kagamihara, and their friends have grown into full-fledged adults. Now with careers and responsibilities, they can no longer freely spend their days camping and adventuring. However, Chiaki Oogaki, who currently works for the Yamanashi Tourism Organization, reunites the group as she comes up with an exciting proposal—to build a campground together to revitalize an abandoned patch of land from their homeplace, the Yamanashi Prefecture. Motivated by this ambitious project, the girls combine their efforts to create an environment where future generations can enjoy unique moments as they once did, all while reminiscing the charms of camping from their high school days.