Shiro didn't know whether or not she should be grateful that Aria has lost her mind since the fight will become easier to predict. However, now that she's lost her mind, she doesn't care about the consequences of her actions upon the realms.
At least when they were fighting earlier, Aria didn't drag others into the fight.
Taking a deep breath, Shiro forced herself to calm down.
'I need to watch out for her singularity attacks as well as the trumpets. From my estimations, it should be something similar to the seven trumpets of the apocalypse. Meaning there are only two trumpets left.' Shiro thought to herself while dodging Aria's attacks.
Retaliating with her own rail cannons, she frowned when Aria shrugged them off like it was nothing.
'I need something that can hurt her for good… But my strongest attack only served to strengthen her. Why? What did she resonate with that allowed her to fuse with the singularity?'