Su Chang'an asked Jiang Tang a question, wondering if in the real world, those who are not cultivators cannot verify blood relations?
Jiang Tang's answer was to consider which era the person was from?
If it's ancient times, or that era, they simply didn't have such scientific methods for blood verification, generally relying on blood drop fusion.
However, even the method of blood drop fusion is without basis, and can be affected by certain medicines, making it unreliable.
For eras like those, where blood type can be detected, if no identification report is available, the problem is solved according to blood type.
Unless the blood types of both families are the same, how could they make a mistake?
Wouldn't a child have gone to the hospital from birth to adulthood?
Reading, wouldn't they have a blood test?
Unless the hospital is run by them, and someone deliberately conceals the truth.
Or perhaps there really are two families with the same blood type.
