What Qualifications Do Slaves Have to Live in This World?

We should get out of here, we don't belong here. Jiang Lin accidentally traveled through time and lived in this world as a slave for more than ten years. He thought he would live like this for the rest of his life. But by chance, he killed Snow Fox. The factory director valued his strength and sold him to the Berlin Colosseum, where he was treated as a toy by the powerful. He was already used to it, but when he met a beautiful girl in prison, his dead heart was touched again. The girl said she wanted to leave here. She didn't belong here. Yes, I didn't belong here either. When he sees the world as it really is for the first time, survival becomes even more difficult! Time is pushing us forward, but I am not ready yet.