After a tragic accident, Ria becomes an angel, being number 5623. She still can not forget things when alive day and night, still remembers Ban Ji Hwan, her earthly boyfriend. A year passed, that called Ria accidentally Ji Hwan in the e-book birth names those who will die in 100 days. Ria rush pray for the angels to be down for hearing aid Ji Hwan. Ria enters the Hae So, a girl and a bit shy...boring life, contrary to the character of Ria permanently. How scandalous subject is crazy, fool, and put pressure bullying from siblings with different fathers So Hae's mother, Ria bites that pass for all to be Ji Hwan. But to find out, then Ji Hwan Left Ria does not recognize.