Naruto - Episode 146

"The Successor's Wish" Arc: Six-Tails Unleashed (Filler/Mixed Canon)

We meet Tsubaki, Mizuki’s fiancée, who feels responsible for his actions and offers to help Naruto and Iruka track him down. Naruto Episode 146

Mizuki breaks into a Nara clan research lab to steal a special chemical formula. By the end of the episode, he drinks this potion and transforms into a massive, tiger-like beast. Naruto Episode 146

Naruto realizes that Mizuki’s transformation looks eerily similar to Orochimaru’s Cursed Seal , revealing that Mizuki was a disposable pawn for Orochimaru all along. Naruto Shippuden : Episode 146 Naruto Episode 146