I think that the MC chose that option (not picking a side) so that he wouldn't bother with the whole mafia game since he is an outsider and therefore he doesn't care who wins between the traitor, and the heroes
@randomname but telepathy doesn’t fit. There’s a reaction shot where everyone is shocked at someone reaching level 40 and if telepathy was possible, why wouldn’t the sword saint do that, since everyone is calling him schizophrenic?
The only one who makes sense is the Paladin. Since they have the ability to tell whether a person is lying or not they can just lie about everyone telling the truth. But that seems to obvious. Other than that I can't really tell.