>>27806120My headcanon is simple, Ina wants to acquire Apotheosis to prevent azathoth from waking up, but this will unleash great evil upon the world, but she's willing to do it for the hope that it she can save at least a portion of reality from disappearing. Oga having fought for 5000 years and so on, losing so much loved one's, and people he cared about see's this as reasonable. He's willing to sacrificed trillions for the odds the some people will be saved.
Oga will be the face of the antagonist for every season until the final reveal that he was working for Ina the entire time. Ina who they assumed was the kind girl who would always comfort them, and be with them is their greatest enemy. But to Ina, she's not an enemy, everything they had together was genuine, she really was her friends. It is exactly why she needs to succeed, so that even if two of her friends survive, its better than nothing.