Reincarnated as mob character in novel this time I will enjoy my life

in the year 4010 Rin was an genius who was an exceptional in anything related to computer and technologies but she suddenly died from a blast and got reincarnated in past into a beautiful girl who has a same name as her at first she was very excited about her new life she thought she could finally enjoy her life but there were many problem like a cliche novel a stepmother and stepsister who bullies her and plot many schemes and a father who do not care about her but a little brother who love her but is too small to help her and of course a fiance who hates her and loves her stepsister but also one day she realised she was actually in a novel and actually realises she was mob character of all and she was going to be sold by her stepsister and stepmother and her baby brother was also going to be killed by them then she decided she will run away from home with her brother to enjoy her new life