Some of their lines are Japanese, I suppose. Fits pretty well for your animation style and overall atmosphere. Or is it just their fascinating accent... It's hard to tell.
The story includes a lot of unknown phrases and terms, at some moments it lacks fitting sound effects. Although it balances it with a good story, nice lookin' character designs and dynamical camera placements.
Well done, It shall be voted. Except seeing your precious work in the Top 10!