After jumping into the river, he actually survived. After being reborn, he discovered that he had supernatural powers and even an alien space.
See how the protagonist leads his friends to stock up on supplies and food, level up and fight monsters step by step in the apocalypse, making the whole world crawl at his feet.
"I possess the nine-nine-nine-eighty-one-dimensional nine-dimensional superpower. From now on, I will let the world hear my voice."
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.