Joaquin Rozas

Joaquin Rozas is a supporting character in the Xenosaga series. He was the stepson of Ziggy when he was still human.

Pied Piper
Joaquin is the son of Sharon Rozas. He is seen at the beginning of the game asking her for them to get a synthetic dog. She tells him they can't afford it right now, but he does spend some time with one in U.M.N. virtual reality while Voyager watches. When Jan goes out for drinks with Sharon and his colleagues and passes out, Sharon brings him back to her home and he wakes up to see Joaquin looking at him. Joaquin asks if he's a policeman and if he can tell him a crime story. Sharon tells him to go to sleep. On a later night when Jan comes over for dinner Joaquin asks him what he thinks of his mom and says he was hoping he'd fall in love with her. Joaquin admits he wants a father but also someone who can protect his mom. Out of any possible candidates he's met so far, he likes him the best.

Jan gets married to Sharon and Joaquin becomes his stepson. Jan gets him as a gift an artificial dog, called Nexus 6, whom Joaquin nicknames Nex. Soon after, Jan has to cancel plans to spend the day with him in order to report to McCallum, but he promises on his next day off they'll build a doghouse for Nex. When Sharon attends the Pilgrimage Council, Joaquin escapes from the babysitter and arrives looking for her. Voyager arrives soon after and seizes both of them. Voyager manipulates them through a mind hack about how they can bring peace to those they love, and Joaquin can be with his father forever. They are engulfed in light and seen dead shortly after.

Episode I
When MOMO first comes up with the nickname Ziggy, Ziggy flashes back to when he was Jan Sauer and provided Joaquin Nexus 6.