Once the concoction was done, Satsuhiro announced to Keiko and his family that the two of them would be leaving. He was afraid that things could spiral out of control fast if Varcon were to be incriminated publically, so he asked for his wife to remain and she agreed to it. Also, if Kaori turned out to be just a pawn of Varcon's, he figured things could get violent, despite Ash insisting that she'd remain calm. Currently, Ash was hopping onto his horse, behind him, holding onto the older Savior's uniform as they rode out.
If it turns that Varcon mind-controlled, Ash wondered, then that's it. If Kaori is actually a conniving liar who has a thing for murdering half-demons, then at least I'll know that too. Just another enemy.