Amegakure, underground experimental base, sterile room.
After a precise operation, Yakushi Kabuto successfully implanted a diamond-shaped Black Rod the size of a fingernail into Feng's brain using a minimally invasive method.
Once the wound had healed, Yakushi Kabuto looked at Feng's stable vital signs on the monitor and let out a deep sigh of relief.
Wiping the fine sweat from his forehead, he looked at Nagato. "This meets your expectations, doesn't it, sir?"
"Good work." The King of Hell of the Naraka Path rose beside Nagato amid dim purple flames.
Konan looked even more nervous than Nagato at that moment. "Nagato, are you sure about this?"
"Don't worry, Konan. Orochimaru and I have conducted many experiments in preparation for today. Every step was carried out strictly. Nothing will go wrong."
"Alright." Konan bent down, gently picked up Feng, and placed her into the King of Hell's open mouth.
She stepped back into the open space and clasped her hands before her chest in prayer.
"Crunch~!" "Crunch~!" The King of Hell's Rinnegan stared ahead impassively as its lips and teeth chewed, and chewed, until after exactly eighteen bites, it stopped.
"D-Did it work...?"
The previous Outer Path Pain test subjects would walk out of the King of Hell's mouth on their own, but Feng was a newborn baby. Even if it had succeeded, she certainly could not walk out. They had to wait for the King of Hell to be dismissed before they could know whether it had worked.
But... Nagato did not dismiss the King of Hell for a long time.
Konan, Orochimaru, and Kabuto all turned their eyes toward him.
Nagato had clenched his fists tightly, cold sweat streaming down his face, which was filled with fear of the unknown.
"What's going on? I-I actually can't dismiss the Naraka