There are various family relationships in the world, such as parent and child, or siblings, but occasionally there are deviations from common sense, such as physical relationships between family members. This world has both surfaces and hidden aspects; where there is light, there is shadow. There are also families that fall into deep-rooted relationships for unknown reasons. However, as the saying goes, "a thousand differences and ten thousand colors," this too might be one way of a family's existence.
