Apologies for changing the premise. I was stuck on the Senju Tobirama from Naruto idea for too long and ran out of inspiration.
During her first century trapped in the Ooku, Amachi was full of hope: if someone came to save her, she would give herself to him.
During her second century trapped in the Ooku, Amachi was sorrowful and numb: if someone came to save her, she would gladly become his servant.
During her third century trapped in the Ooku, Amachi touched her increasingly hollow chest. If someone came to save her, she... wanted a heart.
"Everything will be all right. Once you reach Soul Society, you'll have a new life," a tall man in a pink haori told her.
"Could... could you tell me your name?"
The cool hilt of a sword gently touched her forehead. Having received her answer, Amachi smiled.
My kind benefactor, I will surely repay your kindness. Please give your heart to this ill-fated woman.
Theme: Searching for love and finding it