"She's back," said a man as he wielded his sword with force, slightly distorting the space where the blade passed through.
"Yes, have you chosen your side?" Sasaki's voice resonated, but Musashi didn't respond. He adjusted his grip and struck.
"World Cutter," he uttered, and the sword tore through the sky, devastating the layer of reality, but it was only momentary, lasting no more than half a second, and the world reconstituted itself.
"If this strike were complete, I'd assist the others. But I choose only the side that will win," said Musashi, sheathing his sword.
Both tacitly agreed, but it seemed too late. The skies began to redden, the local temperature rising steadily, and then...
A pillar of fire emerged on the horizon.
"She's here," they said together, opening a portal and swiftly heading towards the pillar.