The Crusaders

In June 2038, an interdimensional rift opened on the city of Zootopia, and a large portion of the people were affected and gained superpowers. 6 months later, in December 2038, this happens once again. These two incidents were given the name "Purple Sky".

The Crusaders tells the story of a team of young adult superheroes formed by a young tech expert to fight crime along with Zootopia city's other superhero group, Team Ceartais; and an orphan who gained powers from the second Purple Sky incident and, after killing a few of who turned out to be members of a crime family known as the Winter Claw, becomes roped into a feud with them and their leader. Soon enough, these two paths cross, leading to quite an adventure.

The Crusaders is a non-canon spinoff of Garouge Faux's Zootopia fan-series, Take a Stand (readable on Fanfiction.net), therefore all characters from this story qualify as fandom characters (the fandom being Zootopia)