Dear my beloved Kairi,
I am sorry to once again leave you with such short notice but it seems I have once again been called upon. I am sorry and I apologize for missing our anniversary, I know it means the world to you and I promise it means just as much to me but I have made an obligation and I cannot supersede this job to someone else. I really wish that I could tell you the details of this mission but due to past events and the ever so obvious detail of my enemies coming after you, I can't give you any information of my whereabouts until after the mission is completed.
Riku will not be coming with me. Hopefully his letter gets through to him and the two of you can keep each other company during my time away. The King of our world needs me, and the King of The Spirit World needs me as well. As the Keyblade Master it is my duty to answer to the call of my work and I really didn't want to do this so suddenly but… alas, I must.
Kairi, I love you. I will be home as soon as I can. Do not weep over my leaving for I will be back as I always am, and I need you to stay strong.
With all my love,
Sora.
Dearest Riku,
I have been called upon on a duty in The Spirit World by the King there. I am entrusting in you the safety of Kairi as well as the keepsake of our secrets. She will be shaken by my sudden departure because this is the Eve of our Anniversary.
I am due to meet a man named Fang at the head of my mission. He will be giving me the details of the task as well as the signal as to whether I can come back and get you or if you need to stay there. Until then, DO NOT LEAVE DESTINY ISLANDS. I swear to Enma, Riku, it is such an important subject for you to not leave the Islands or Kairi until I am absolutely sure that we are not in a Red Alert state of danger. I love you Riku. You know that fact more than anyone, and I will be back. I am sorry that I'm going to miss our plans for next weekend but we can make up for them anytime. The beach isn't going anywhere.
Stay safe,
Sora.