Two World's Apart ( my life time belongs to you)

Everyone wanted her, the poor adore her, the rich loathe her, she is wanted by both good and evil. she rules both night and day An unparalleled genius cop psychologist at day and the most dangerous and deadly assassin at night was she killing for fun? or there was more to this endless murder? Li shen she is his most wanted criminal, an unbreakable fatal attraction between two different worlds, his most precious treasure and eternal failure. X? That code name that threaten his day and night who exactly is X? within his reach? few meters apart? or world's apart?