Uryu Ishida's vision blurred as he looked at Ren and pleaded, "Ren, please save my grandfather!"
Ren nodded. "Don't worry. I owe your grandfather a favor. Of course I'll save him!"
As he spoke, Ren released a surge of pure Spiritual Pressure around the bloodied Soken Ishida, then headed straight for the Spirit Particle Space beneath the courtyard.
Uryu Ishida tried to follow, but Kayle, who had transformed into lightning, stopped him.
Morgana followed close behind. "Master, this is strange. With Soken Ishida's aged body, he should never have survived a Cero. It should have reduced him to ash! Yet he's still breathing."
The Amethyst Ring flashed on Ren's finger, and a white palace appeared. He went inside and laid Soken Ishida on an operating table amid the medical equipment. "It's simple. Soken Ishida has been staying with us, eating roasted Sea Kings every day. All that nourishment strengthened his body. Only a little, perhaps, but it was enough to withstand the Cero and keep him alive."
Ren took out an incubator shaped like a coffin, placed Soken Ishida inside, and filled it with nutrient fluid brimming with vitality.
Ren had brought the nutrient fluid and medical equipment from the One Piece World. Since he had decided to travel to another world, he had prepared plenty of supplies. Once the Trash Station began devouring the One Piece World, everything there would remain frozen until the process was complete, and he would be unable to take anything out.
So before coming to the Death God World, Ren had hunted all kinds of Sea Kings and stored them in the Trash Station's space. He had also stocked up on ore, medical equipment, weapons, and armor...
In short, Ren had prepared every resource he could think of. Medical equipment had been especially important.