After the second round of the Chūnin exam, and right after the encounter with Orochimaru in the Forest of Death. Sasuke's condition was worse than ever, you noticed it and just when you about to tell anyone about the mark on Sasuke neck. He grab your wrist and pull you a bit closer to him, he mumbled only for the two of you can heard it.

"Don't you dare tell anyone about this. Mind your own business."

Sasuke said coldly, the black cursed mark is spreading everywhere on his body