Beniko was raised in a poor family, while Rinko is a noble lady of the Kiyose family. In the middle of an inheritance fight, Rinko is poisoned to death. Masahiko was raised like an older brother to Rinko, and Beniko pleads to him to buy her as a stand-in for Rinko. Masahiko accepts her offer because he wishes to get revenge on Rinko’s murderer. In order to save her family, Beniko crawls up out from her difficult life and begins living as Rinko in the Kiyose family. She then begins to get wrapped up in the fierce battle over the Kiyose family’s status and fortune.