"In the near future, probably in Japan, it is long after robots are come into practical use and not so long after human-type robots, or androids appeared.
Because of Robot Ethical Committee, people take it for granted that they should treat them as electronic appliances. However, because of their appearances being identical to ours except their having rings on their heads, some people are attracted by them too much. They are called as “Doll-Style” and it becomes a social problem.
Because Rikuo has been taught to treat them as such since he was a child, he doesn’t think of androids as human beings, and he uses them as useful tools. One day, he finds that strange words are being recorded in the activity log of Sammy, a home android.
Tracing her footprints with his friend Masaki, they arrive at a strange shop that puts up a slogan not to discriminate between human beings and androids."