I found it pretty funny that THE MOMENT the trope: "a deep power rests within you, awaken..." popped in, I instantly became bored and stopped flipping through it.
It's such, such a tired shounen trope. What is this, the 2000s? What's next, his friendship with his captain is so strong he evolved into a higher being? Come on, man.
If you're having a struggling MC, at least make the reason he struggles be somewhat interesting, and not some Naruto bullshit where he finds infinite power from some contrived plot reason (and genetics).
This is definitely one of these manga where I wonder why did anyone bother to translate em', this can't possibly make any money or garner any more of an audience.