otherwise world

1

You are sent into a other world by scientist, here your job is to study this world and possibly make trade with this world also. But, unannounced to you this world is rude by demi-human and human's are Enslave by demi-human(BTW, is has nothing to do with slavery in IRL/real life). you didn't know about this yet, but... You have Modern technology to help you in this world, so, feel free to use this, if you use a gun, you have unlimited ammo and time move the same in both worlds)