I kinda trust Demon @.@ He played a lot and saying he got a passive role he never had before it's risky for a mafia, leaves only a few options for him to bs about later. I don't think he'd gamble like that so soon. "New" people saying they never had it before means almost nothing LOL.
But imo there should be liar(s) among the passive ones... setups can be pretty crazy (specially since once Gry had not passives in game @.@) but idk... said my thoughts on it in the other posts, it looks weird.
I'd go for either Grace for her apparent reluctance or syx for claiming it first, before "seeing it could look odd" (of course, in case he's lying; but imo a liar wouldn't claim passive after seeing that many did it as well, if he'd do it last).