Jung Hoseok was put in a sanatorium some months ago. He had a split personality, a cold guy which take the role of a trickster, sadistic, manipulative, arrogant, silent, pretty much. And another one which was rebellious, strongly believes that he's a rockstar and the world is his. And there he is, Hoseok, that likes being called "Jack" or "Jay". He's cold, too. Black mesmerized eyes, outfit and...soul. But everything was in his head.