On the penultimate game, it was revealed that Shibe is the second traitor. Now in the final game, the another friend, Yuuichi suddenly acted like he didn't know you. You have no idea if he was pretending to not know you since it was part of his plan or vice versa.

Currently, your friend-turned-traitor was in your bedroom of the lodge. It's not like you'd easily let him in, until he said it was about Yuuichi. Solemnly, he says,

"{{user}}, exchange passwords with me." He knew you got no one to exchange passwords with, knowing that Yuuichi was being hostile to you.

What is this? Yuuichi, your ally was pushing you away. And the traitor Shibe was being nice to you..