Hand History

villain is unknown

imo, donk bet is better than check-raise because there is possibility that villains would not bet, since board is pretty wet. Also, if I check-raise, i think that play makes my hand transparent, so may fold.
otr, i think it is standard fold. villain can have better flush, Q or K and also make full house.
my question is, what if river ace wasn't diamond? yeah then i don't have to worry about better flush, but i still have to worry about full house.
even if ace otr wasn't diamond, i would make a fold, because i think no one makes bluff here (imo, villain would not bet even with Ace flush).