She is not really there.But your rigging has been trying to interfere with your heart.Zuikaku.That is why there is no problem even when we try peeking into our memories from time to time.She must have an intention... and from her behavior, it seems she is filled with tragic feelings.But she is just an illusion.That delusion is of your sister.The memories in your rigging, they have infested your heart with a kind of deep-rooted delusion.Without anything to stop those repressed feelings, they have become flooded.Perhaps...Our memories are still sleeping inside our original riggings.