Jigen Vs Naruto and Sasuke

Around the time Kaguya Ōtsutsuki and Isshiki Ōtsutsuki arrived on Earth, Jigen was a novice monk. After Kaguya abandoned him, Isshiki attacked Jigen, shrinking himself to enter the monk’s ear and survive. As Isshiki absorbed Jigen’s nutrients, he gradually took control of the body, eventually embedding his Kāma in Jigen. However, since Jigen’s body couldn’t sustain Isshiki’s chakra, he chose to wait for a more suitable vessel instead of reviving himself in Jigen. Isshiki, through Jigen’s body, formed a secret organization called Kara to achieve his goals. He found and bought Kawaki from his abusive father, intending to use him as a potential new vessel. Jigen presented himself as Kawaki’s new father, but subjected him to harsh training to master the Kāma, repeatedly emphasizing his value was only as a vessel, and physically striking him for questioning. With Amado Sanzu, a Kara scientist, Jigen experimented on Kawaki and 14 others to transfer Kāma, with Kawaki being the sole success. Amado also modified Jigen’s body with Scientific Ninja Tools. Isshiki planned to sacrifice Jigen, with himself still inside, to the Ten-Tails to make it bloom into a God Tree, though the resulting Chakra Fruit would be of lower quality due to Jigen’s health and strength.