I honestly have to reread some things to be certain of this but from what i can remember Maki was heavily implied to be somehwhat relative to Toji with the main thing separating them was the experience that Toji had. I can't see current Megumi or Yuji doing much to Toji at all. Maybe if Megumi had a perfected Domain and Yuji had something else they would be able to take her down though