Kim Charlotte is 19. She met Luhan 7 months ago. They automatically fell in love and soon became a couple.

One night, Charlotte's life changes drastically. She's in a fatal car crash. She survives, but with memory loss of the past year of her life. 

The last thing Charlotte remembers is leaving home at 17. Luhan swears to help her regain her memories, but it isn't as easy as it seems.

Will he help her remember the last year or is she a lost cause that Luhan needs to give up on?

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