Julio Morenos is the infant son of Hana and an unknown man. His father walked out on Hatchin when she was three months pregnant with Julio. He lived with his mother until Michiko was released from prison or broke out. Fulio's name is revealed in the letter Hatchin tries to send Michiko.
Like his mother and grandfather Hiroshi, his surname is Morenos.
Hana - He is shown to be very playful, but sometimes ends up becoming too feisty (Hana admits that this is a personality trait that reminds her of 'someone she knows' most likely referring to Michiko).