Henry had never anticipated that he was going to be attacked at this moment. Initially, he had been thinking that the other continents were definitely not peaceful at all. After all, with so many races within a continent, it was definitely impossible for them to be able to dispatch members of their own race into another continent to conquer it.
But it seemed that he had overlooked the fact that the zombies could increase their number as long as they dealt with the humans. They could transform humans into members of their own race, giving them the best advantage over all the other races, the numerical advantage.
It might be true that the zombies that were being sent over were not that much strong to be able to cause much of a dent to the powerful Domination Star territory, but even then, it was definitely kind of troublesome for them to keep on attacking.