Quote Originally Posted by Crossblades View Post
I was actually able to get the Alchemist Dresssphere and I'm in Chap.3 After fighting Dark Bahamut and you see that scene on Celsius, and the game tells you that Clasko got impatient and headed to the Calm Lands
That settles it, if you helped O'aka too, it'll also inform that he left the Celsius too. Go for it