Emiko Sakamaki is the youngest and only daughter of the sakamaki family. she was loved and brought light to the mansion when she forgets her memories and Is now human what will happen to her

Yuki Sakamaki, 3rd born of Beatrix, 3rd oldest of the siblings, and also the only female. Now that she is back to her childhood home, her brothers want to know where she went. What was she doing? Why did she come back?