Olivia wrote a letter to her new brother. I have typed it out below exactly as it was written:
I cannot wait to be your older sister. It will be great to have a brother. Because I have never had an older or younger brother before. I think it will be a good thing to do. When you come Mommy is going to need a lot of help from me. We will have to feed you, put you to sleep, play with you and change your dipers. All these things will keep us very busy. And yes all of the attention will go all to you of course. I can't wait to meet you! Our family will change a lot when you arrive. Because we won't have five, but six! It's going to be a lot of fun with you here. I love you so much Yihun, and I know that God loves you too.
Love, Your Sister,