Uchiha Yuu could see worm-like chakra pathways emerging across his exposed skin. Stimulated by the Hero's Water, those pathways began to swell, accompanied by stabbing pain throughout his body. This was the most dangerous stage of injecting the Hero's Water.
It was also the primary reason people died after drinking the Hero's Water.
"Sir, should we increase the dosage of anesthetic?"
Outside, Muichiro Tokito's eyes were filled with tension. When he saw the ferocity appear on Uchiha Yuu's face, he instinctively raised his hand, ready to halt the process.
Uchiha Yuu slowly opened his eyes and shook his head, stopping him. As the entire vial was injected, the transformation of his body entered its final stage.
The pain coursing through Uchiha Yuu's body rapidly faded. He could feel the chakra flowing through his pathways becoming surging and violent.
The Hero's Water itself could enhance chakra to a certain extent. The weaker the person, the more obvious the improvement. But for Uchiha Yuu, whose chakra reserves had already reached the level of a Tailed Beast, the increase was negligible.
However, expanding his chakra pathways was enormously helpful to him. What Uchiha Yuu lacked was the speed at which he could output chakra. With the experiment's success, the ninjutsu he could now unleash was far more powerful!
Almost at the very instant the experiment was completed, a pale purple glow burst forth from Uchiha Yuu's body.
"Ding ding!"
An alarm unexpectedly rang through the formerly white laboratory because something had exceeded its limits by a severe margin. That meant some part of the laboratory had been damaged.
The personnel still conducting experiments abruptly stopped, instinctively wanting to flee, but Muichiro Tokito stopped them. A crazed smile spread across his face as he loudly announced:
"The Hero's Water we developed has taken effect