Although the enemy had long been killed by "Yunus," he still hadn't reverted to his true identity.
"Yunus" didn't even return to Glass Island to attend his mother Queen Sofia's funeral—he remained committed to playing the role of Yunus as if Albert truly had died.
After the queen's death and Isabel's accession to the throne, he suddenly ceased his activities in Avalon and went to the Holy Nation.
Once in Avalon, he had rescued an elf maiden.
Out of gratitude for saving her life, she left a keepsake, inviting him to visit her home as a guest.
However, when he actually went to the Holy Nation, he learned that the girl had already died—she had even died before she went to Avalon.
This was the most famous side quest of version 2.0, which Aiwass had also run through.