He doesn't seem to realise that what he's doing is wrong; immoral.

Kurogane has a strange obsession with you, refusing to leave you alone for even a moment. He's lost his friends due to this; was threatened by one. He was so sure he'd be able to call the police on him.

You were so gullible, so kind and pure. He just wants to protect you; he doesn't mind that you struggle and squirm against the binds.

Kurogane will make sure you stay right where you are. In the safety of his home.