Upon returning to the Shrine of Mysteries after completing Nottagen, Providence and Hubble, there will be a scene that will result in Maribel leaving your party. Head to Pilchard Bay and find Maribel on the second floor. Talk to the priest and tell him no, then go back home and speak with your father, answering him yes when asked a question. That’s all that needs done here in Pilchard Bay and you can do one of two things now, either finish the present version of the last scenario, or go meet up with the Roamers once more.
To find the Roamers, head to the Dig Site and you should see an encampment to the southwest of there. Enter it and you’ll find a similar scenario to when you found them in the past. Go around and talk to everyone while you look around for some goodies. One of the pots next to the lady in the southeast has a Mini Medal (#66) , while the pot in the southern tent has a Meaty Treat . There will be some more pots by the western tent, with one containing a Seed of Life , and one of the two chests inside that same tent will have a Medicinal Herb .
Once you’ve spoken with everyone, speak with the man at the northern tent for a scene. Enter the northern tent now to find four chests, only two of which can be opened and one containing anything ( Seed of Life ). Talk with everyone here, then exit the encampment via the southern entrance, going to the cliff area not far from the place to find Aishe there. After a short conversation, return to the Roamers’ encampment and enter the northern tent again to set off a series of scenes, culminating with Aishe joining your party.
Note: Aishe joins at level 21 and with the Dancer vocation already maxed out, as well as Warrior being at level 3.