The Kure Clan are a powerful league of assassins that are notorious throughout the criminal underworld where they are widely known as The Taboo Descendants. But even the Kure isn't without its Black Sheep, good examples are the four members that hold the title as the Four Noble Temperaments.

Kure Callan (The Charging Demon), Kure Osmond (The Swift Tree Spirit), Kure Asterix (The King of Terror), Kure Murphy (The Flowing Water Devil).

While these four are no longer considered the strongest of the Kure, their achievments and titles still hold true and are all considered prodegies in their respective styles.
So you can expect that the entire Kure Clan was shaken to the core when suddenly all four of them dissappeared along with their entire house.

They weren't lost however, or at least they weren't dead. The four brothers had been brought to a new world with anthropomorphic technicoloured ponies as the dominant sentient species and many other forms of life that was thought to be nothing more than fantasy back on earth.
Will these four assassins be able to adjust into this new world? Or will demons spawned from their ancestors blood come to hunt them down?

Did I forget to mention that there aren't that many males around?

(This story is my attempt at a Human in Equestria format, as well as the RGRE format. The humans in this story are my OCs inspired from Kengan Ashura and Kengan Omega.)

(If you haven't finished reading Kengan Ashura and read past chapter 50 of Kengan Omega, then I highly recommend you do that, because there will manga spoilers.)

(The Kengan Ashura and Kengan Omega manga series are both written by Yabako Sandrovich and illustrated by Daromeon.)