Japanese title for Grand Master in all games?

I think I heard/read KevinDDR say that there is a Japanese title for someone who becomes Grand Master in all the TGM games. Maybe it was all modes including 20G, Death, and Shirase as well.

In either case, anybody know what this title is?

 

If I were to guess they would be called a Zensaku GM? Though it might be worth pinging @KevinDDR or @aperturegrillz on the matter as I don't know enough Japanese to say with any certainty.

 

Thanks! Yeah, I think that's it! Remember it started with a 'Z' and sounded something like that.