Reincarnated as a Cannon Fodder

꧁A 20 years old woman suddenly died in an accident and when she wake up she became a baby!? wtf? ---- All she want to do after her rebirth was to prevent the death flag surrounding her and to protect her new found family and also to teach the heroine a lesson for being a two-faced bitch but there was a certain prince who had a twisted personality suddenly became interested in her Jincy"hey,hey stay away from me!you psycho prince!" A certain prince"But Im your fiance,you are bound to me~" Jincy"noooo!"