Ferengi (mirror)

In the mirror universe, the Ferengi were a space faring humanoid species native to the planet $𝜇$ in the Alpha Quadrant.

The Ferengi worshiped a divine being known as the Blessed Exchequer. 

Although the Ferengi society of the mirror universe was likewise built on the principle of free enterprise, many Ferengi were far more compassionate and less greedy than their primary universe counterparts and often paid for their compassion with their lives. For instance, the Ferengi bartender $𝜇$ bravely helped bravely helped $𝜇$ slaves escape from the custody of the Klingon-Cardassian Alliance by smuggling them onto departing ships. In 2370, he was exposed by a captured Terran slave and was swiftly executed on the orders of Intendant $𝜇$ after being tortured by her first officer Gul $𝜇$. 

They were oppressed by the Alliance, leading to many Ferengi joining the Terran Rebellion. Among them was $𝜇$, Quark's younger brother. The mercenary $𝜇$'s sympathies lay with the Rebellion but he and his partner $𝜇$ frequently worked for the Alliance. 

In 2377, the Ferengi recognised the new Terran state which was declared after the combined Terran Rebellion and Memory Omega fleet liberated $𝜇$ from the Alliance. In retaliation, $𝜇$, the Regent of the Klingon Empire, used a trilithium explosive to destroy Ferenginar's sun, leading to the almost complete extermination of the Ferengi people. This dishonourable act led to the Memory Omega agent General $𝜇$ challenging Klag to a duel. Duras succeeded in killing him and took his place as Regent.