The game is MTL (Machine Translated) and thus it's not translated by a proper translator, hence the engrish. Gotten a fair bit into it and it's fully playable. I mean, even if some sentences (a fair bit tbh) sounds like nothing more than gibberish, you can still, more or less, make out the meaning of the text due to the situation you are in at the time.
Also, this game has some of the best, non-obtrusive, pixelated censorship I've ever seen! Hell, you can actually see the dicks and vaginas here instead of a screen filled with nothing but a screen filled with mosaic pixels.