After death, as a result of the accident, RIA became Angel No. 5623. He could not forget his life when he lived. She misses Ban Ji Hwan, her boyfriend on earth, day and night. A year later, RIA saw the name of Ji Hwa in the list of death, the list of all names that were going to die in 100 days. RIA pleaded to high-ranking angels to allow her to save Ji Hwa. RIA entered the body with He, a shy girl who was tired of his life, the opposite personality of RIA. Trying the thugs of the pivot brothers with He, Ria did everything possible to endure everything to find Ji Hwa. But when he found him, Ji Hwan could not learn RIA ...