In a future Japan where android housekeepers have become commonplace, society strictly adheres to the Three Laws of Robotics, which all androids must follow. Under the influence of the Robot Ethics Committee, androids are treated no differently than lesser technology, such as household appliances. However, a minority group that adores androids exists, categorized as "android-holics," and is shunned by the general public. Rikuo Sakisaka was raised to accept society's precept regarding androids and is fully aware that they are not human. That changes on the day he discovers a strange message buried within the activity logs of his household android, Sammy. This leads him to Eve no Jikan, a cafe with only one rule that its patrons must adhere to: there must be no distinction made between humans and androids. Curiosity drives Rikuo to learn more about the shop, and he attempts to unearth the reason behind Sammy's peculiar behavior.