including considering concluding
One day, a letter  [MASK]  a school reunion came to my office.I decided to take part.After the reunion, I  returned  to my old home, only to find my mother falling on the cold ground with a  letter  in her hand, which read:
My son,
I think my life has been long enough now.I won't visit Seoul anymore, but would it be too much if I wanted you to visit me once in a while?