Q28: Luna is the only person Dio willingly allies with. I’ve always wondered how he would have voted against her had she not died in the second round, when she only had 1 BP?

     Sorry… I rechecked my documents and Dio decided to ally with (Quark pair) on the first round and (Tenmyouji pair) in Sigma’s route on the 2nd round.
     (There is also another round where Phi didn’t let him in the AB room.)
     The only time he has Luna as an opponent is during the bomb route’s Round 1. Is that what you’re talking about?
     Regardless, I think his decisions would change depending on the current situation.