Galuf accepted Dorgann's wishes and the four united to seal Exdeath there, leaving Dorgann behind, but expressed some guilt. Though the other Dawn Warriors objected to sealing Exdeath away in another world, Dorgann insisted there was no alternative and offered to stay behind. However, they were unable to destroy him entirely, and were only able to contain him by sealing him. Galuf and the Dawn Warriors eventually followed Exdeath to Bartz's world and beat him. When the warlock Exdeath broke from a centuries-long seal placed on him by Sage Ghido, thirty years prior to the events of Final Fantasy V, Exdeath wreaked havoc on Galuf's world, causing the Dawn Warriors to respond.
Galuf was a Dawn Warrior along with Xezat Matias Surgate, Kelger Vlondett, and Dorgann Klauser. It is unknown whether Galuf became king before or after being a Dawn Warrior. Galuf and his fellow Warriors of Dawn sealing Exdeath.