In terms of the beginning of the story, it's interesting (although I can't believe that something like that would happen in real life). In terms of drama, it really suppresses my emotions, reading it to the end in just one night can even make me unable to sleep(I was crying). The message that I can take from this story is, appreciate time as much as possible. because you won't be able to go back to a certain time, or experience it twice. Make the best use of your time. One sentence from me, thank you very much for the dramatic story. I recommend this, but not gonnagive any spoiler btw, so enjoy :D