藤島康介
, designed by Kōsuke Fujishima, is a great spirit and Milla's older sister. In "Tales of Xillia", she follows the party during their mission to defeat Exodus and turns against them in order to keep the existence of Rieze Maxia's barrier a secret. She allies herself with Gaius after Maxwell ceases giving her orders. She, along with Gaius, is defeated by the party at the end of "Tales of Xillia". In "Tales of Xillia 2", a parallel dimension's Muzét served as a divergence catalyst host and is killed by Ludger. The real Muzét joins the party afterwards.