Woeful Upas (Japanese: 禍福のウーパー, Kafuku no Ūpā) are quest exclusive enemies in Xenoblade Chronicles. They can be found in Satorl Marsh in the water above Zaldania Waterfall. They are kindred enemies, and appear as a group of five with group loyalty. They first appear during A Final Sweet Favour, attacking the party after the Mysterious Droplet is obtained. The quest can be completed without defeating them, and they will respawn after the quest is completed. They are one of the rare quest exclusive enemies which respawn after the related quest completion.