There Is a Dragon Palace in My Fish Tank

The alien barrier was broken, and Blue Star faced a catastrophe. A sudden appearance of an army, a ferocious-looking fallen corpse, a ferocious strange beast. Human beings forge ahead in suffering, break through their own limits, and become awakened. With the efforts of generations of awakened people, the only human city-Dawn was built. After the apocalyptic "catastrophe", mankind's only city "Dawn" became the last seed. The protagonist Li Meng accidentally gets a chance at the "Tianhai Dragon Palace". Under repeated fateful decisions, what should he do...