I think I've spent way to long trying to discern what they did to make the red haired girl actually look blind, why they're relating social status to race, and many other things.
Guess I was taking it way to "seriously" after trying to figure out why it has this title considering the CG, heh.
Well, one of the interesting fact is that in the past "social status and breeding" was somewhat like "race." In the past prestige and wealth was usually inherited from their ancestors. With this some people thought of their lucky birth-right as a result of their own skills and ability, leading to a concept similar to racial superiority. Ancient Athenians for instance separated aristocrats and the masses from the superior quality of "blood", others proclaiming descents from gods, something akin to race concepts today in explaining social inequalities by difference in culture.
The story of this game presents race and all its difficulties and foolishness in the heroines. MC is a country boy in the city, without previous knowledge of these concepts. The story is where he tries to overcome this concept of race to get the girl. Thus, the title to represent something beyond race.