If you don't have access to this timeline yet, you need to use a Wild Artefact on the crystal gate in AF300 Bresha Ruins.
Have a word with the red sphere (her name's Marie) in the northeast part of The Paddraean Archaeopolis, who wants you to find her sister Millie . The woman in question is walking around in the passage southeast from the searchlight area in The Pass of Paddra. Since she's concealed, reveal her and talk to her before she runs away. You get the Wedding Jewelry , which needs to be delivered to the red sphere to get AF110 YASCHAS MASSIF FRAGMENT - Gerhilde's Blossom (01/06) + 500CP !
If you climb the ramp leading to the face of the statue in The Paddraean Archaeopolis, you can nab a treasure cube with the 'Maleficence' Gate Seal (enables Time Reversal in AF110 Yaschas Massif).
Head over to the searchlight area, and look down in the ravine north from the area. Ahead is a treasure cube with the Outdoor Watch , requested by Shannon in AF010 Yaschas Massif (use Moogle Throw to recover the contents).