After humans won the war against the invading, humanoid aliens, certain parts of the planet were plunged into perpetual winter, due to the core of the invaders' mothership exploding. The protagonist, Arrim, lives in one of these places.
One day, while walking through a blizzard, he comes across what he thinks is a person, almost completely buried in the snow. Thankfully, this turns out to be a robot, rather than someone at death's door. The female robot is clearly a servant, however, and one who's owner has been relying on her, to fetch food.
Thankfully, the robot is functional enough to speak, and Arrim is able to bring her, as well as her food, back to her starving mistress.
The robot's wheelchair-bound mistress, Rosim, thanks Arrim and welcomes him into her mansion, asking him to care for her while she repairs her robot servant, Sapphire.
And so, their relationship begins…