Although the Serpent Emperor had barely 30 warships at the time, the Dwarven World Planet, or what would later be called Planet F1, was not a major challenge for the Great Serpent Empire.
The planet was young in every sense of the word, there the inhabitants barely knew that they could use the third stage of the heavenly laws and become sages! The mutant human dwarves control most of the planet, there are a few wars here and there, but overall it is a peaceful place to live. In the end, the dwarves tend to love trade, industry, and hoarding money, and wars are always their last concern.
The appearance of space warships was like doomsday for them. Ugly monsters that are not humans or snakes, using a minor law related to the path of destruction! Who can stop something like this? Not only that but among them are dozens of people who can use the fourth stage of the heavenly laws!!