Das is doch nix neues ...
Das steht schon seit ein paar Tagen da
Übersetzung vom Text:
A sword was developed by the Bureau of the Arts* of the Order of the Sword. Part of the handle is like the accelerator of a bike, and if it is twisted, propellant is discharged from a jet nozzle at the peak**. Due to the thrust of the propellant, even weak people can perform powerful attacks.
-- that was the concept, but with Nero's sword this has been taken and remodelled to the limit, and it is no longer something that could be used by a weak human.
An existing six-barrelled, large calibre revolver that Nero has remodelled himself. Having forcibly made a second barrel, it is possible to fire two bullets at almost the same time. Thanks to this, the gun is now able to hold its own against multiple demons, or when firmly surrounded by demons.
To the Order of the Sword, swords are the most valued weapons, and there is a tendency to look down on guns, so Nero is the only one who uses a gun even though he's part of the Order.