Yeonjun,
By the time that you receive this, I may probably be gone. I made this letter before my surgery. I just want to thank you. Thank you for pretending. Thank you for enduring the pain. I know all this time that you're just pretending for my sake. But you should had atleast been true to me even once. So you can know what I truly felt for you.
Please don't be sad and continue to smile. We may not get the chance to spend each other's time together, but time will make it happen. On our next life, I promise to be yours and you'll be mine.
I love you, my greatest pretender.