"To Rin
From : Dad

There was just so little time left after you were born.
I don't know how much love I managed to pour into raising you after your mother died...
But your smile kept me going. (^_^)

 I would like to have come with you, but I couldn't.
 I wanted you to forget everything and move on... I knew you'd be alright.
 But you'll get lonely, and remember.

I know you'll grow strong, and read this letter some day.
 I really wish we could have spent more time together. I'm sorry.
You were so young back then, too young to understand what they meant. So let me repeat...
 My final words to you."

the final words were her monologue at the end.