Oto vs. Konoha!!

Summary
The Sound Four offer to advance Sasuke's cursed seal to its second level. Because they are forcing the process, Sasuke must be put into a death-like state for an extended period of time. They explain the state as 'suspended animation' after which Sasuke agrees and, after "dying", is sealed into a coffin. Meanwhile, Tsunade gives Lee a final chance to back out of the operation. Seeing how determined he is to resume his life as a ninja and fulfill his dreams, she immediately gets to work. As the Sound Four carry Sasuke's coffin to Orochimaru, they are found by Konoha ninja returning from a mission. Knowing they will need help, the Sound Four activate their cursed seals.

Trivia

 * The part of Tsunade's conversation with Lee regarding his surgery was moved to episode 107 in the anime.