Note to the reader:

Inuyasha's only living relative is his older, bully of a half brother, Sesshomaru. Or so he thought.

Inuyasha soon learns that he has a twin sister named Suzume. For the fifty years that Inuyasha spent pinned to the Sacred Tree, Suzume was looking for him. But now that they have been reunited, there remains one major, unsolved question: why were the twins separated in the first place?