The (sort of) original working title for this was "Reincarnated into a neo-feudal world of mecha knights, I will reinvent the panzerkampfwagen and mess up the social political order!" or something along those lines. And honestly that's a good enough synopsis given the nature of isekai titles.

This story is unapologetic trash but at least it's the least cringe stuff I have written so far, so here it goes.