The Aftermath
The moment the system's assimilation was completed, the pod rang with a musical buzzing noise. The rhythm of Aron's heartbeat was disrupted, but immediately mended by the runes, resulting in it beating with more vigor than before. Then, the billions of runes that had been active through the process dimmed and reduced the rate at which they had been absorbing mana, prompting Nova to reduce the amount of mana that was being fed into the pod.
With the continual dimming of the runes and the reduction in mana intake, it soon stabilized, and the frantic absorption of mana was over.
That told Nova that whatever the system had been doing was over and she released the excess computing power to continue whatever it had been tasked with before, resuming the two universal simulation instances that she'd suspended and the rest of the tasks that were still ongoing.