He spared Sasuke because he loved him more than the village. The Weight of the Truth
Sasuke listens as his reality flips upside down. The brother he spent his life trying to kill was actually his greatest protector. The episode ends with the realization that the Hidden Leaf Village—not Itachi—is the true enemy. If you'd like, I can: Break down the used in the fight Explain the lore of the Uchiha Coup Summarize the next episode where the "Truth" continues Naruto Shippuuden (Dub) Episode 139
Naruto Uzumaki’s world shatters in Episode 139, titled The Aftermath of the Storm He spared Sasuke because he loved him more than the village
Before the Leaf ninja can reach Sasuke, a masked man named Tobi arrives. He claims Sasuke for himself. He takes the unconscious Uchiha to a safe location. When Sasuke wakes up, he is bandaged and trapped. Tobi sits in the shadows, his voice changing from playful to chillingly serious. The Mask Slips The episode ends with the realization that the
The battlefield is eerily quiet. Sasuke Uchiha stands over the lifeless body of his brother, Itachi. Rain washes away the blood and the years of hatred. Sasuke collapses from exhaustion, his mission finally complete—or so he thinks. A New Guardian
Tobi claims to be Madara Uchiha. He tells Sasuke he isn't an enemy. He reveals a shocking truth: he knows everything about Itachi. Sasuke lashes out, his Amaterasu activating automatically to kill Tobi. Tobi survives, proving his power is beyond comprehension. The Tragic Truth Tobi begins to unravel the lie Sasuke lived. Itachi wasn't a monster. He was a martyr. He killed the clan to prevent a civil war.