User blog comment:IamJakuhoRaikoben/Chapter 398: The Final Duels, Review./@comment-112.198.82.144-20140905141805/@comment-7418318-20140905145547

I think Mira is there to end the chain. Sayla needed to be there so that someone could feed Kyouka some Curse Power, so Hiro put Sayla there. But at the same time he needed a reason why Sayla wouldn't just go and dominate everyone with her Macro, so he put in Mira to keep her in check.

There, problem solved and as a free bonus the people who wanted to see Sayla and Mira again also get what they wanted, albeit only in a small dosage.