|“|| I won't let her die! This time... I will save her! I swear it!
Dr. Juli Mizrahi heads investigations into the appearances of the alien scourge called the Gnosis. She formed the Subcommittee on Close Encounters, also known as the S.O.C.E., in T.C. 4754. Based in Galaxy Federation Capital Fifth Jerusalem, she is the ex-wife of Joachim Mizrahi, creator of MOMO and founder of U-TIC. Although the 100 Series Realian child is registered as her daughter, Juli has a secret reason for wanting the cyborg mercenary Ziggurat 8 to transport MOMO to the Miltian star system, instead of bringing her back to the Federation Capital: the analysis of the Y-Data hidden deep within MOMO's subconcious.
In Episode I, Juli would rather not have anything to do with MOMO, even though she is legally MOMO's mother. She never quite got comfortable with the fact that her husband, Joachim created MOMO in the image of their late daughter, Sakura. She felt like MOMO was some sort of sick attempt to replace or recreate Sakura and she couldn't bring herself to try and relate to her. After speaking with Ziggy however her view of MOMO started to changed. Ziggy, who had come to know MOMO as a real person since he rescued her, suggested that Juli not see MOMO as an attempt to replace her daughter but as a second daughter. Juli began to open up more and more to MOMO after that point and began to realise that she was indeed her own unique person and not just a copy of Sakura. After the events in Xenosaga Episode II, she decided to live with MOMO and accepted her role as her mother, with Ziggy on standby should a crisis arise.
In German, "Juli" means "July." The Japanese transliteration of the name, Yuri, means "Lily"; thus she is included in the group of female characters name after flowers. Her maiden name also contains the word "Garden" in Japanese. This name, Niwashiro, along with her European appearance, also suggests that she is biracial.
Following the timeline of the series, she was a teenage mother. Her first daughter was born when she was only eighteen.
Her social difficulties, savant-like science skills, and birth to a daughter who shows features of nonverbal autism indicate she may suffer from Asperger Syndrome.