A character that requires a sidequest, Myf is available for recruitment as early as after the purging of the cult in Faktenlor. Bring along the Memorial Dagger (initial equip for hero), a Long Knife (available in Oneson), and Stiletto (available in Suna) to the second floor of the library, where the party will find Myf manhandling a desk. Say you will help her open the desk, and you will lose all three weapons to pry open the desk. Once Myf has gotten into the desk (and to her alchemist kit), she will try to repair the weapons. When she fails, she joins the party out of guilt.

It is suggested that Myf is left at the castle once it is established, as Myf can repair and upgrade the Memorial Dagger as she is not used for storyline events. It is most notable that Myf can create the Myfril Dagger out of the Memorial Dagger, which is the strongest dagger in the game, by the third-to-last war campaign.