Oz Vessalius is the main protagonist of the anime and manga series Pandora Hearts. He is the heir of the Vessalius Dukedom, a prestigious noble family. On his fifteenth birthday, during a coming-of-age ceremony, he is mysteriously cast into the Abyss, a prison-like realm. There, he forms a contract with a Chain named Alice, also known as the B-Rabbit. Throughout the series, Oz embarks on a journey to uncover the truth behind his banishment, the mysteries of the Abyss, and his connection to Alice, ultimately challenging fate and defying the shadows of his past.