Time for some more Grindhouse anime.

Beings called Remnants are invading Japan and the only one who can seal the gate is the hapless Takumi who is protected by his loving sister Hazumi who really loves Takumi as they are reincarnations of lovers from a previous era who stopped the remnants last time, since sealing the gate means death, nothing is stopping Hazumi from claiming her brother.
This looks like a typical Grindhouse anime, needlessly violent and has a style that says that this is adult but then it gets really silly, this is a parody of a typical Grindhouse anime and one which ended Grindhouse in it's ultra violent form until the west dragged it out a bit longer, this really needed to be a parody otherwise it's just madness, it gets a tentative pass for it being a comedy but as anything else, Project A-Ko did it better and way earlier, it doesn't help that the tropes it's working with are not obvious enough for it to be a good parody.
Dub as far as I know is available but I watched it sub.
Final Verdict: Saved by being a parody but were still figuring out what it is parodying.