Below is a walkthrough for the Romero and Joulietta standard quest in Xenoblade Chronicles 3. To obtain this quest, approach the ? high up on the northern side of the City during Chapter 5 after leaving in the ship then returning.
When the cutscene concludes, travel to the Lavi Sandbar in the Erythia Sea. At the objective, a cutscene will trigger followed by a fight with the Level 47 Lavi Pagul. Defeat it then fast travel to Michiba Canteen in the City. Head to the objective to trigger a cutscene. When it concludes, so will the quest.
Rewards:
- 2840 EXP
- 2880 Gold
- 3 SP