Cheating Men Must Die is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

One moment oppressing scum yields a moment of satisfaction. Continuously oppressing scum yields continuous satisfaction. Our female main lead, Su Lüxia is bound to the Female Lead Counterattack System and transmigrates to several small worlds. Using elaborate means, she beats up countless cheating bastards and bitches. Su Lüxia: “Only a cheating bastard’s tears of remorse, and the pained moans of a bitch unable to get what she wants bring me solace.” System: “Has my host tapped into her humanity today? Nope.”