Steady radioactive energy emanated from the Meteorite. Under Uchiha Yuu's precise guidance, the cluster of purple energy enveloped the other man's body. Before long, the test subject displayed symptoms of radiation exposure, though only his skin showed some burns.
There was no danger to his life, which meant their experiment had been partially confirmed.
At the side, Orochimaru swiftly completed the Cursed Seal. The instant it was branded onto the subject's body, the seal absorbed the radiation from the Meteorite and stored it within. One black tomoe after another appeared on the subject's neck.
As the experimental assistant, Uchiha Yuu stared intently at the expanding black tomoe, which resembled a tattoo. At the same time, he watched the steadily rising temperature on the instruments and interrupted Orochimaru's next move. Noticing the latter's displeasure, he explained,
"It has only partially succeeded. This is the first stage of its ability."
"He is an extremely valuable test subject. Until we know whether the next experiment will succeed, we need to keep him alive."
"Experiments involve a degree of luck, after all. I have no intention of gambling on better luck next time."
He did everything with absolute rationality, not out of kindness. Coupled with his understanding of Cursed Seals, Uchiha Yuu could confirm that the subject before him was a successful case.
The body was still suffering damage from the radiation, but it could endure it for quite a long time. Just as the two had predicted, it had not undergone the next stage of Sage Transformation.
Watching the test subject begin to struggle on the operating table, Orochimaru injected him with another sedative. His tightly furrowed brows finally relaxed, and there was a trace of pleasure in his voice.
"Developing Cursed Seals is indeed difficult. Now that the direction has been confirmed,