You inspect the chains

Your glance wonders towards the chains, all warmed up thanks to your body heat. Your wrists are cuffed together with a twenty centimeter chain. The chain is tied to the collar around your neck, with a length of roughly forty centimeters, making unable to use your arms proper. Although you could still crawl on all fours like a pet.

The cuffs around your ankles aim to further reinforce this idea. There is an extremely short, perhaps ten centimeter chain between them, plus another chain that connects them with the ring around your waist, at the length about fifty centimeters. You cannot hope to stand on your feet like this. So yes, you are meant to go on all fours, like a pet, and pray that the nanites can to handle all the wear and tear this lifestyle causes.

Now if you had a key, you could unlock these. But you don’t have one. And even if you had, you cannot move your fingers, and thus the chains are here to stay for the time being.