Chaos is a former mercenary who ends up in Equestria through a radioactive shield with teleportation mechanics being damaged and creating a small, localized wormhole Chaos ends up in the Changeling Hives and soon earns the friendship of Trixie, Chrysalis (probably) and a mare named Vendetta Dragonbane, a hunter that lives in the Wastelands
(The gore tag is for a scene involving Timber Wolves)