Cremia

From Zelda - Wiki on Neoseeker

Big sister to Romani. Had to look after her and the ranch, since their parents died. Doesn't believe her stories about alien invasions.

After completing Romani's request get a ride with Cremia to town at 6 p.m. on the second day(Note: It must be the second day that you get rid of the ghosts). Defend her coach on the way there to get Romani's Mask.