Living Corpse Reincarnation was an S-Rank Kinjutsu created by Orochimaru himself. It allowed him to transfer his consciousness into another person's body, thereby objectively achieving his goal—immortality.
But at the same time, it left him with an enormous weakness.
Every use of Living Corpse Reincarnation damaged the caster's soul. There was a period of weakness before and after the reincarnation while the caster adapted to the new body. The soul damage could recover after a period of rest, but if the soul's rejection of the vessel was too severe, the caster would remain in a weakened state indefinitely.
Orochimaru had clearly used Living Corpse Reincarnation. Although he had concealed it with ninjutsu, Naruto still immediately saw through the fact that Orochimaru was currently a woman.
Orochimaru really did seem cursed when it came to genjutsu. In the original story, Uchiha Itachi had defeated him with a single glance, and now Naruto had altered his cognition with one look as well.
Of course, Naruto had only altered part of Orochimaru's cognition. He had merely made Orochimaru regard Naruto as his master; it did not change Orochimaru's pursuit of immortality or his passion for research.
That was the terror of Kotoamatsukami.
"Lord Orochimaru, please calm down. Guren only acted this way because she was worried about you."
Kimimaro and Jugo immediately moved away from Orochimaru and watched him warily, but neither dared to make a move.
Guren only felt as if her throat was about to be crushed. Her face grew redder and redder, and her consciousness was on the verge of fading.
"Lord... Orochimaru..."
"Enough. Let her go."
Naruto spoke up to stop him. Guren's Crystal Release was not weak—at the very least, it surpassed Haku's Ice Release. After all, she had temporarily sealed the Three-Tails in the anime.
Hearing that,