In episode 30 of Naruto Shippuden, we see that during the second phase of the Chunin Exams held in the Forest Of Death, Sasuke encounters Orochimaru in disguise. Impressed by Sasuke's potential ...

This prompts Hiruzen to use the forbidden Death Reaper Seal Jutsu to seal away Orochimaru’s arms and the previous Hokages, sacrificing his own life in the process. The first time we meet Sasuke ...