Hi...hope you guys enjoy this story..For those who do not understand the story..here is a summary

Krystal is not a human..she is a spirit..she came back to find her memories...the memories that she treasured the most...when she came to the house, she remembered all the past before she died and before she broke up with kai...as it was about time for her to leave the human world...kai found her but time ran out for her...she has to leave even if she is reluctant...

sad ending.....