Nephry was born in N.D. 1987 in Keterburg. She joined Professor Gelda Nebilim's school in N.D. 1992, along with her brother, Jade, Saphir, and Peony. Around N.D. 1996, she began growing closer to Peony while he was staying in Keterburg, maintaining correspondence with him even when he is forced to return to Grand Chokmah in N.D. 2003. On her twenty-third birthday in N.D. 2010, Nephry learned from Yulia Jue's Score that she would marry another man, and ended her relationship with Peony that year. She eventually married Viscount Osborne and took his name.