Will a man whose father died unexpectedly die early if he marries him? My parents require boys to have parents as the first condition. If they die early, it means there is feng shui there.

Your parents are very feudal and have no scientific basis. Some people have heredity, don't live long, and then die unexpectedly. It's no accident to die like this. It's long gone. Without parents, it may be disease or heredity. You should find out the real cause of your death. You are a modern person, don't believe in ghosts and gods, and don't believe in horoscopes. Brother and sister don't deserve it, but they are very happy.