The Adventure of Rebirth in Another World Season 1: Survival

The protagonist is exploited by a sinister industry, unfortunately becomes seriously ill, and travels through a different world without knowing whether he is alive or dead. But here is the era of swords and magic, and it is also the most primitive state of human existence. It is the law of the jungle, the weak eat the strong, and the threat to humans is not that of dangerous alien beasts. Sometimes the human heart is more dangerous. For some weak lives, survival is already not easy. Let's see how the male protagonist experiences adventures in such a different world and chooses a way to survive.