well i dont mind at all lol, damn censored...
anyway in the first place they "take" those cuff, forcefully (i think, most likely is)
i think it's like slavery, but worst since the human think they are just a pet, animal. while slave is still at least humanoid/demi human. both are bad, but at least slave is a bit better
i just want's to destroy this kind of society, it's pretty fcked up.
at least in hentai, it's all fked up so it's fine (the weirder is better? lol)
but here? a manga? even ecchi is still fked up