"Let's Arbeit!" centers on the daily lives and misadventures of a group of part-time workers at a small, struggling convenience store. The protagonist, Haruto, is a college student who takes on the job to make ends meet. His coworkers include the overly enthusiastic but clumsy manager, Aoi, who often devises impractical schemes to boost sales; the stoic and efficient cashier, Rina, who hides a surprisingly playful side; and the laid-back stock clerk, Takuya, who frequently naps on the job. The store’s owner, Mr. Tanaka, is a frugal and eccentric figure who rarely appears but leaves a lasting impression with his bizarre demands and cost-cutting measures.

The narrative unfolds through episodic vignettes, blending humor and slice-of-life moments as the characters navigate the challenges of their jobs. From dealing with difficult customers and handling inventory mishaps to participating in ill-fated promotional events, the series captures the quirks and camaraderie of working in a low-stakes, high-chaos environment. Each episode highlights the unique dynamics between the characters, showcasing their growth and the bonds they form despite their differences.

Subplots occasionally delve into the personal lives of the characters, such as Haruto’s struggles to balance work and studies, Rina’s aspirations to become a professional photographer, and Aoi’s attempts to prove herself as a capable manager. These moments add depth to the otherwise lighthearted tone, offering glimpses into their motivations and dreams. The series maintains a steady pace, balancing comedic antics with heartfelt interactions, and concludes with a sense of closure as the characters reflect on their experiences and the lessons learned from their time at the store.