For Kabuto, that loop is hell.
Every time the loop resets, Kabuto sees himself standing over the corpse of Nonō, the woman he loved as a mother. He hears his own voice justifying the murder. He watches as he rejects his identity ("I am no one") and embraces the scalpel of the spy. kabuto death episode
But that tension is the point. Naruto argues that even those who have erased themselves can be rebuilt. Kabuto’s "death episode" isn't a punishment; it's a surgery. Itachi—the great pacifist of the Uchiha clan—performs the ultimate act of non-lethal force. He doesn't kill Kabuto because killing him would be easy. Making him face himself is the hard part. For Kabuto, that loop is hell
The episode’s setting—the dark, cavernous lair where Kabuto fights Itachi and Sasuke—is crucial. Caves in mythology represent the womb, the underworld, and the subconscious. Kabuto has literally retreated underground, away from the sun, away from humanity. He watches as he rejects his identity ("I