Minfilia asks you to check on Yda, who seems especially troubled after recent events.
This quest is available if you have completed the quest ???.
Starting the Quest
Talk to Minfilia in the Rising Stones to begin the quest.
Speak with Yda
Exit the solar and go to the quest icon in the map. Talk to Yda. There will be a cutscene.
Hand Over the Flower Payment
Go outside and go to where the orange arrow is pointing in the minimap. Talk to Rowena and hand over the Flower Payment.
Deliver the Moon Daisy
Go outside and go to where the orange arrow is pointing in the minimap. Talk to Yda and hand over the Moon Daisy. There will be a cutscene.
Speak with Alphinaud
Go to where the orange arrow is pointing in the minimap. Enter the Rising Stones and go into the Solar. Talk to Alphinaud to complete the quest.
Next Main Scenario Quest
After you complete the quest, talk to Alphinaud to accept the next quest: Defenders for Ishgard. There will be a cutscene. This one is important, so it is recommended to watch it either now or via the Unending Journey in an inn room.