I.M.P

The I.M.P (Immediate Murder Professionals) are the main villain protagonists of the "Helluva Boss" series, which is set in the same universe as Hazbin Hotel - unlike the cast of Hazbin Hotel however the I.M.P are outright evil demons and set to make profit on their already violent nature by selling themselves out as killers for hire in the human world.

History
I.M.P were formed by Blitzo, who managed to secure a means to enter Earth via taking Stolas' book - however in order to do this he had to first sleep with the overlord, this has been shown to haunt Blitzo in more ways than one as Stolas has now become somewhat of a clingy, threatening "client".

Blitzo's company comprises of himself and two other imps known as Moxxie and Millie, as well as his hellhound adoptive daughter and secretary, Loona - all of them argue and bicker, though Blitzo sees them as a family rather than a true business (however this is also used to justify his neglectful and unprofessional mannerisms).

While highly trained killers I.M.P are still by very nature chaotic and thus often get into absurd situations, such as when they accidentally sniped a child - this is also when the audience sees that I.M.P have a strange ethics system despite being clearly evil characters, since they promptly took the child to the hospital afterwards, saving his life.. though they also got kicked out after Blitzo revealed he had no insurance (nor any concept of what insurance even was) : the group would keep the child in their office, despite this.. these efforts to save the child quickly changes however when they are informed that he was indeed their target all along and Blitzo promptly shot him, praising that "there is a God after all".