Plastic Memories unfolds in a near-future city where Sion Artificial Intelligence Corporation produces Giftias, androids so advanced they can pass for humans. Each Giftia is built with a fixed lifespan of 81,920 hours, and when that limit is reached, Terminal Service units like Terminal Service One must retrieve them before their memories fade and they become dangerous. After failing his college entrance exams, eighteen-year-old Tsukasa Mizugaki is hired into this grim but quietly compassionate job, where paperwork, fieldwork, and difficult goodbyes are part of daily life. Assigned to Terminal Service One, he is partnered with Isla, a petite, placid Giftia who is respected as one of the best retrieval agents on the team despite her reserved demeanor. As Tsukasa learns the routines of collection and the emotional toll they leave behind, he becomes increasingly drawn to Isla and to the fragile sense of connection that defines their work. Through their partnership, Plastic Memories explores a world where technology can imitate life almost perfectly, yet cannot escape the limits that make every bond temporary.