If you don't understand why this is funny, it's because this a character that should have everyone calling him a blatant Gary Stu.  Literally, he's got a bunch of Stu tropes: his magic knight form is based on a Gundam from Gundam Wing, he's a half-god (implied to actually be half-demon or youkai) with bonus cute Inuyasha-expy-style ears and hair, he has a vaguely explained blood connection to canonical characters, a prophecy hanging over his birth, and a crystal that doesn't operate under the standard Moonie rules.

And yet, with the way I wrote him, all these things that should be the blatant hallmark of a Sue haven't been an issue in the slightest.

See... The knight form became the result of space colonists who, having cannibalized their own technology to survive, lost many details of their history and, over the years, built up their own mythological history based on the fragments of what they did know and interaction with the less-than-equipped-to-explain-technology gods and spirits to explain these GIANT SUITS OF ARMOR they've got hanging around.  And they believe these magic suits of giant armor will come to life to protect them, so they do, in the form of knights and senshi.

The half-supernatural creature thing became a combination of translation issues and culture of the colony.  The colonists made pacts with the supernatural to survive and they live in relative harmony with things that would have, on earth, gone bump in the night.  To them, they're gods and protective forces, welcome in their lives, homes and even their beds.  In other systems however, the ones they call gods are regarded as monsters and demons. And, hnng, how this plays out into local culture and cross-system politics and how their system interacts with a universe that literally thinks they're the craziest barbarian bastards they've ever seen.

The relation to canon is left vague because it now ties into old myths about the gods wearing the armor.  The colonists don't even know that those who piloted the suits were merely human or that much of their mythology is distorted versions of the truth, covered in a veneer of aggregate myths.  And, for bonus levels, it's been so long that none of them can even read the data from the suits if they realized what they were and booted them up because the language has shifted so much in the years.  Even the pilot's own descendants don't really understand the machines they've been left because they are also participants in their cultural beliefs.

The prophecy turns out to be an exact words deal, but has more to do with his parentage than him exactly.  And, as to the crystal not operating as usual, it is because the people of these colonies have shaped these crystals from their beliefs and it's their beliefs that dictate the extent of the power of the crystals in their system, as the entire system is a commentary on the shaping power of belief.

So basically, I'm loling because I won with something that should have been a complete trainwreck, but wasn't because characterization matters.