Jonathan is a In a word, vampires. There are two branches of Night-Children, but both stem from Notte, as he was the first. More, and an impossibility. He’s a seer, and a rare one – he’s never been wrong. That power is why A vampire, and Notte’s oldest surviving child (not his first, however). More took him, keeping him safely under Seishirou’s protection while benefiting from his skills.
In the mid 1600s, something bad happened, and Jonathan was dying. Desperate, Ravena shared her blood – and miraculously, it worked. Seers are Kin, for the most part, refers to human wizards – that is, humans with something else in them allowing them to do... More, and cannot be made into Night-Children, but Jonathan was.
He’s the third Kin in all of history to be successfully made. One of the Night-Children, made sometime in the He won’t say what his original name was, but it sure as... More and One of the Night-Children, made sometime in the She won’t say what her original name was, but it sure as... More – twins – are the other two.
So then what is Jonathan? How can he even exist? No one really knows, but his uniqueness only increased his value. Too bad Ravena didn’t take the kind of care of him that she should…