Destiny in Another World

Born in a family, he has a genius mind and is too perfect to be picky about his appearance, but he is born with a weak body, suffering from minor illnesses every three days and serious illnesses once a week. He shouldn't have died young. A person with the same appearance at the same time died at the same time. It was another death with the same appearance as hers. Due to the negligence of the seducer, she died without any bones. In the end, when the truth was found out, she could not recover because her body had been molecularized. In order to make up for the mistake, she could only be reborn in another world and live in place of another person. Is this a fault or an arrangement?