Isekai Another World

Frei. An entities from Earth, gets transported to another world, to another body, a slave at a place called Freiheit. With only fragments of his memories and limited knowledge of this new world, he adapts to this new life and learns from the people, both terrible and the good in this world. Eventually as time passes on, Frei wants to escape FreiHeit and move onto another new life, a life that isn't bound by chains.

Mostly, this is a story about a boy who started off with absolutely nothing, someone who climbed his way up the hierarchy, persisting through every single challenges the world gave him and his survival in this unforgiving world.