Together
Initially, Jason's plan had been simple.
He wanted to enter the peak of the Prismar stage before initiating the plan he and Jennifer had set up.
At the same time, Jennifer wanted to enter the Initial phase of the Ascendion stage by starting the fusion process of her soul with the three vessels she owned.
However, both tasks were something that required much more time than they had initially assumed, even after using Luna ranked techniques.
Because of that, they spent an entire year inside the elemental crystal cave, which allowed Jason to solidify the dome crystal. Meanwhile, Jennifer had been able to connect her soul to her vessel and enter the Ascendion stage.
This process took her extremely long, and Jason knew that he would require some time to reach that rank too. This was even more evident because his secondary Celestia bloodline awakening would happen.