As the well-known 'Giant Mosquito', it is impossible for Jia Yan to go to Earth in his gigantic true body as the Giant Mosquito. Even if he did, he alone would be larger than 'Return City', so how could he go back? It would involve comparing sizes with the city instead.
This might be one of the costs of becoming stronger.
Therefore, he still used the old method.
Which is to use his own avatar.
"This time, when I go back, I'll send the new avatar I just got from the Country of Taia over there."
Jia Yan knows that although his avatars have similar technological content, each time a new avatar is created, there is a difference in strength due to the differing brainwave power used at that moment.
And this new avatar just barely reached the stellar level threshold, meaning that even if an average stellar-level creature comes, Earth won't face the crisis of extinction.
