Succubus no Wakaresaseya-san

Sakuraba Jill is a lousy college student who only preys on other men and finds the greatest pleasure in destroying relationships. Her true identity is that of a succubus - a low-level demon who extracts semen from human males! When a mysterious female lawyer, Tsuji Tomoe, discovers her true identity, she is forced to take on a very shady and erotic job of helping women who want to break up with their men, in exchange for turning a blind eye to her countless acts of infidelity... A "succubus breakup agency" opens its doors, reluctantly! The long-awaited latest work from Kosumi Fujiko, the creator of "Samurai Drive"!

(Source: Kadokawa, translated)