All right, you are done with sidequests! Let’s get back to saving the world with our new gear and higher levels!
From wherever you are, go back to the planet’s surface and fly to the Dalg continent again. Remember, Unei said to visit her and Doga after having obtained the Fang of the Earth.
Not suspicious at all. Get the Nautilus from wherever you last parked it and return to Doga’s Manor. After a scene, step into the portal.