Rui's plan came to fruition perfectly. The moment the number of Martial Seniors reduced to two, the Gereign Base became viable for targeting. Before, he had avoided assassinating any target there because the risks were too high with the number of Martial Seniors residing in it.
He couldn't maintain the Greater Phantomind Void, at least without any risks of seriously messing up, while also engaging in heavy combat that required his full attention. Thus, if he got hit with a long-range wide-scale attack after assassinating one of them, he would be exposed to be attacked by multiple strong Martial Seniors.
Even for him, that was not something he could overcome at his current level of power.
That was why he waited for the right moment; when there were only two Martial Seniors left.
Then, it was possible for him to do his regular assassination modus operandi by preparing and finding the right resonance frequencies to assassinate him with a single strike.
