u/ajaysinghlather

Giants use the same technology, for transportation, as the people of sky island or birkas. What if the, yet, unexplored heaven realm is hiding such people but with more advanced research, weapons and knowledge. And such people use the heaven realm of elbaf as a hideout or station of contact, because they can't be seen or act as please on the ground or are in constant pursuit by the World Government, since they can use cloud cities too, just like weatheria, where nami learnt under scientists.