That bruise on her face kinda shows up awkwardly, It's a big smudge that instantly developes but not right after the impact- which was directly head-on so it'd make more sense for it to show up on her forehead- Or at least show with a different angle that she hit more on that side so it's not so MARK-ON-FACE-WOW all of a sudden for us.
Darn it! I thought I had the bruise thing going!
Anyways thanks guys, forgot to mention that the real big hint was that Mizuka mentioned to Kunaga during the dance that Juzumi was suppose to be unable to have kids, since well half of those parts were also damaged, so Metsu's birth looked like a miracle. Anyways this is meant to transpire into a side story for Metsu, but you'll get a huge amount of information in the next two following scene to how it happened as I experiment with flashbacks again.
P.S. Like how you mentioned 'trying' Madd-Mutt
, thanks though. I'll be mentioning it soon in the information dump that the quality may continue to increase for X-Ponies and explain why.