The Heiress and the Female Gangster
Gayara accidentally saves a pregnant woman from being assassinated and died on her way to the university. Afterwards, she got reincarnated as the daughter of the woman she saved but in a parallel dimension called the ABO world.
She was supposed to be restarting her life but, her identity proves otherwise. After being subjected to an experiment by the Chief Scientist of Styx Organization, she realizes that this world isn't that simple either.
As such, she participated in all kinds of military training, absorbing all the necessary knowledge to parry against all evil at a young age.
Upon graduating, she unexpectedly saved her fiancee from an assassination attempt, who was appointed by her mother whom she didn't think of until then. Alas, even her fiancee isn't that simple either.
The seemingly weak omega who faints or trembles at the sight of blood, is secretly a member of the Military Intelligence Corps. She feeds them information about incoming attacks, dangers, disasters or any kind of conflict she saw from her vision. As a result, her life is always at the top of the knife.
Knowing this, Gayara is determined to support and protect her from the dangers created by the citizens of Cosmos continent, a society of mad scientists whose creations disrupt the order of the world, creating chaos at every step of the journey.