Portal

"With this many monsters, I am sure they also hunt each other. This is a perfect breeding ground to produce strong beasts," Alice commented as she found similarity with the forest in her world.

"No wonder then. I always wondered why so many monsters could just come out from the dungeon. 

Even if beside it is another world, just how many do they have? It's not like they are infinite. 

Also, with a system like a dungeon, I don't believe we are the only world with a situation like this."

"What situation do you mean, Aunt Quartz? The dungeon break and invasion of species?"

"Something like that, but it could also just be a contact thanks to technology or a magic spell. But I don't believe a peaceful contact is possible.

Just look at history. Even with the same species, it always escalates to conflict, no matter how it started."

"That is true. Anyway, how far are we from the city?" Emily replied while she checked the map on her implant.