4. Uchiha Sasuke

When Sasuke was traveling with the Otogakure Team to meet Orochimaru, the team informed him that Orochimaru had instructed Sasuke to consume the Seishingan pill. This pill was designed to force Sasuke’s body, which had only reached the Level 1 Cursed Seal, to evolve into Level 2. With this transformation, Sasuke’s body would gain immense power. However, as a side effect, Sasuke would temporarily fall into a near-death state.

After taking the pill, Sasuke’s body collapsed. The Otogakure team then performed a sealing technique, placing Sasuke’s body inside a special container. A few hours later, Sasuke emerged from the container with a new appearance—his hair had grown longer, and one of his pupils had turned yellow.

The battle between Sasuke and Naruto at the Valley of the End began. Standing atop the statue of the Second Hokage, Hashirama, Naruto leapt toward Sasuke, who was positioned on the statue of Madara. Naruto pinned Sasuke down and punched him in the face.

However, Sasuke quickly retaliated by lifting Naruto’s body with one hand and delivering a powerful punch to his stomach, causing Naruto to fall into the river. Slowly, Sasuke began to feel the immense power surging within him thanks to the Seishingan pill.

To counter Naruto, who had transformed into his One-Tailed Kyūbi form, Sasuke activated his Level 2 Cursed Seal, causing his body to transform into a monstrous eagle-like form. A fierce battle ensued as Sasuke in his Level 2 form clashed with Naruto in his One-Tailed Kyūbi mode. The climax of their duel came when both launched their ultimate attacks: Sasuke’s Chidori and Naruto’s Rasengan.

In the end, Sasuke managed to defeat Naruto. After seeing Naruto unconscious and lying on the ground, Sasuke chose to leave him behind. He was determined to continue his journey to meet Orochimaru.