- Go to Happiness Village and talk to the chief to learn about the problem.
- Go to Harpy Village (this step must be done after finishing the first Tartarus). Head to the top of the tree, following the signs when necessary, and talk to Nero in Queen Harpy's house. You will receive the Yggdrasil Fruit.
- Head north to the Harpy Tower and make your way to the top.
- Defeat Queen Harpy (see that page for strategy).
Completing this quest is a prerequisite for several others: Vanilla's Shop Quest (you can now visit the item shop in Harpy Village to progress the quest), Rami's quest (talk to a harpy in the Harpy Village inn to begin this quest), Teeny's recruitment and Pyhar's recruitment (talk to them in Iliasburg's Sutherland Inn and Pornof, respectively).