Albinus_istamar

In the middle of an intergalactic war, one of the best pilots in the stellar fleet witnesses helplessly the destruction of the entire fleet and, with it, the annihilation of all mankind.

When the oxygen in his destroyed ship ran out, he only reproached himself for not having been able to at least die like a hero. 

However, without knowing why, his soul returned in time to the day of his entrance exam at the academy. 

This time Eneas would save his life, his mother's life, and everyone he could save. Armed with an inhuman ability to pilot, he will make the most of his mecha, the Phoenix named Uroboros, changing history of the universe forever.

Eneas Fate

The forbidden planet was large, but not as large as one of the planets inhabited by humanity; even among the satellites in the galaxy, it would be one of the small ones, although if one thought that this entire planetoid was a space base, the perspective changed.

How many facilities and factories would there be in there?

However, if someone saw the planet from the outside, they would only see a rock with craters in the middle of nowhere; not even the surface was special, hardly any mineral, barely usable, although 97% of the planet from the crust inwards was composed of iron and other metals. Or at least that's what the reports said.