Yes, Episode 258 is classified as . It is the second episode in a four-part special (Episodes 257–260) designed to recap the bond and growing rift between the two lead characters. Should You Skip It? Rivals (episode 258) | Narutopedia | Fandom
Sasuke witnesses Naruto’s explosive growth after his match against Neji and begins to truly view him as a worthy rival.
The episode concludes with Sasuke and Kakashi’s dramatic entrance into the Chunin Exam arena just before Sasuke’s disqualification. Is Episode 258 Filler?
The episode revisits Sasuke’s intense training with Kakashi on the cliffs. It shows the moment Kakashi confirms Sasuke's Lightning Release affinity and decides to pass down his unique technique, the Chidori.