Time travel from the high-tech era
During the assassination mission, everyone in the Youlan team made a misjudgment and almost wiped out the entire team. By coincidence, they took all their assets and traveled through time. The first world they traveled through was the world of beasts with more men than women. They gained a foothold here step by step and taught the orcs who joined how to behave. Eat, read, and forge weapons. The night before the end of the year, they had the same dream. The dream was full of zombie-like monsters. They bit humans, and the humans they bitten would be assimilated by them. Some of them would not even be able to assimilate before they would eat them and leave bones behind. There was a shortage of food there...
When they woke up again in the early morning, the sun shone on their faces, and they went to prepare supplies without any hesitation, because they knew it was time for them to leave, and that was where they wanted to go.
Therefore, every year when they are about to leave, they will have a dream related to the next world.
