Which Gaurdian Would You Choose for a MMZ Spinoff Game?

If, for some reason, there was a spinoff MMZ game centered around one of the 4 guardians, who would you want it to be about?

I would kinda want it to be about Fefnir lolz I would want to see what his escapades would be like during the times he's not around Zero. Does he really back up his words? Or is he secretly incompetent or haz some silly hobbie lolz