Fiona

Fiona, nicknamed Fifi by her friends, is a Hero in Xenoblade Chronicles 3. She is the commander of Colony Mu.

Transparent Dreams
The party finds Fiona unconscious at Conchrock Beach. After regaining consciousness, Fiona wants to help her friends, promising that she'll keep them safe, but is still injured. Eunie then performs a Group Heal Art, healing her injuries. After recovering Fiona reveals that there was a Kevesi raid on her colony, before introducing herself as the commander of Colony Mu. She then requests the party to help her friends.

While looking for her friends, the party and Fiona came across husks of some of her friends that were killed, prompting Fiona to sob. Noah and Mio then sent off the husks.

The party then rendezvous with the colony's lieutenant, Irma and soldiers under attack by Kevesi soldiers. With the party's help they were able to repel them.

Other appearances
Fiona can be among the recruited Heroes to aid the party in the final battle against Z, declaring that she'll fight with the party as she is summoned. After Z's defeat, Fiona can be seen on the Agnian side as Aionios splits back into the two worlds it was created from.