Why even let them fight with normal guns, if that transformation gimmick is whipped out at the end of every chapter? A bit boring tbh. Also potentially ruins the character dynamic between the two MCs, as apparently the big titty nun will be unable to participate much in the over the top action from this point on, which next to the still unexplained exceptional horniness forms the core of this manga. Quite a shame. The short action scene in the church in chapter 1 where they both fight against the vampires was the most enjoyable fight so far. A shame.