Why complicate things? He could just answer: Yes, I know what they are. No, I wont tell anything more than that. Try ask to Ouranos. That is it. It doenst have to be a 4D chess or anything like that. They ask, he answer what he want and tell it wont give more information

Why is she surprised? when she inherit the Scepter(Key) she learned that the Evil Ghost Emperor created this skill based on the undead power.

Is there gonna be a Burn the Witch reference? It takes place in the western soul society, but instead of shinigamis with sword, there are witches with wand/gun.

Would be interesting to have a golden list where Rifan is not the number 1, maybe this power list or a intellect list where vegapunk probably win. At least in this way Rifan dont become the all perfect better in everything, since this type of character feels too artificial. At the same time, having other take the number 1 reward could let to more interesting stories.