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Two sisters living separate lives on different continents are reunited on a Mediterranean Island. The two barely have time to bond and revive family ties as Kate, the elder, meets a group of locals and agrees to an exciting ride on a hot air balloon. But disaster strikes and as the result of a freak accident, the balloon is carried far out to sea. Their cell phones out of range...。落魄千金程又然为报弑母、夺家之仇换脸埋名，借用好友苏心悦的身份与星云集团继承人、杀母仇人之子许时安假意订婚。在搜集罪证的过程中，程又然的真实身份逐渐被许时安识破，然而，许时安没有揭露而是默默守护并暗中协助程又然的复仇计划。程又然剥开层层真相，发现当年的罪魁祸首竟另有其人。。This is the story about the revolutionary change of YouTube。