This is so anime that Miyazaki is rolling in his grave (and he's not even dead yet).
Jokes aside, Oli and Virella have basically summed up what I was going to say - there's no point in making your character's backstory As Cool As Possible if it never comes up or is accessible to others, and as far as I can tell there is no basis in established lore for anything you've posted here.
Also that is a lot of equipment and I'm not sure how it pertains anything at all (and it probably weighs a ton, but that's neither here nor there).
TL;DR - Play what you want, but be prepared for a lot of people having no desire to go Full Anime.
Jokes aside, Oli and Virella have basically summed up what I was going to say - there's no point in making your character's backstory As Cool As Possible if it never comes up or is accessible to others, and as far as I can tell there is no basis in established lore for anything you've posted here.
Also that is a lot of equipment and I'm not sure how it pertains anything at all (and it probably weighs a ton, but that's neither here nor there).
TL;DR - Play what you want, but be prepared for a lot of people having no desire to go Full Anime.
