Confession (episode)

is episode 166 of the Naruto: Shippuden anime.

Synopsis
Naruto is still pinned down by the Deva Path when Hinata appears to aid him, confessing that she will protect him because she loves him. As Hinata tries to break Pain's hold over Naruto the Deva Path engages her in battle. After struggling to reach Naruto over and over she decides to stand and fight, only to be overpowered everytime. As the battle continues, the Konoha shinobi start the hunt for Nagato. Puzzled by why Hinata doggedly fights and protects Naruto despite her weakness, she declares it to be her nindō. She is then seemingly killed by the Deva Path, triggering in Naruto an explosion of the Nine-Tailed Demon Fox's power.