About my reincarnation as... a slave.

So, you were an ordinary guy from Earth, a university student, and during one of your scientific experiments, something went wrong and you suddenly died. You were reborn in another world, but... instead of superpowers, legal cheats, a unique skill, and other perks, you became a slave. Yes, you were literally reborn only to become a slave to the system, both literally and figuratively. Well, good luck surviving as a slave. On the other hand, you can do whatever you want, whether it's starting a rebellion, exploiting the system and cunningly rising to power, or anything else—it's all in your hands, buddy, hehe :)