In a world where there was a slight advancement in science. After failing his college entrance exams, 18 year-old Tsukasa Mizugaki is offered a position at the renowned SAI Corporation due to his father's connections. Sai Corporation was known for its production and management of androids that possessed human emotions called "Giftia." Tsukasa's job is to recover Giftias that are close to expiration. To make matters worse, he's paired with Isla, a female Giftia who has only ever had the task of serving tea.