"Squeak! Squeak!"
Brilliant flashes of lightning circled around Sasuke, while increasingly dense black steam poured out from around him. In response, the Cursed Seal of Heaven on his neck was breaking through the barriers of the seal, running wildly toward a loss of control.
Naruto caught this dangerous signal, but he did not immediately step in to stop it. Instead, he let Sasuke pour out his chakra, keeping his eyes locked firmly on the seal.
Chapter 98