'I Reincarnated But Have No System? You Must Be Kidding Me!' - Chapter 33: Against the Circle

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

200 years after the world has ended, the laws of society have long been forgotten.

“I will let you be on top from tonight, please don’t divorce me, darling!”-----Evelyn’s fairytale life shattered when a stranger stormed in, claiming to be the real daughter of the Wright family with proof. Her enviable privileges? Stripped away. Her spotless reputation? Tarnished. Her four-year engagement? Abruptly annulled.But the worst betrayal came from her once-loving father, all set to marry her off to settle a business score—with a man twice her age!Everyone in the circle attended this scandalous wedding, eager to witness the downfall of the supposed fake heiress. Yet, the climax was not what even Evelyn had anticipated!Zevian Reign, the nation’s richest tycoon, known for being every woman’s fantasy and the nightmare of all his rivals, made a dramatic entrance. His arrival stunned the guests, but his brazen wish was even more startling! He casually demanded to replace the groom and marry the beautiful bride.No one dared to challenge, nor did anyone have the guts to disobey him. They were left with no choice but to watch the wedding unfold.And it was Evelyn’s time to smirk, for she was now the devil’s wife. And all those who had ruined her, they would pay back in tenfold!++++[Excerpt]“Why would I ditch my husband for a loser?” Evelyn chuckled, crossing her arms defiantly. “He is better than him in all the aspects.” Her gaze drifted to her ex-fiancé nearby, and she continued with a smirk, “Actually, a lot better in bed.”As Annabelle’s face flushed with disdain, Evelyn patted her back and leaned in to deliver another slap. “So, good luck with licking my leftovers, dear step-sister. He's a perfect match for you.”

Worlds overlapped, and Alien Species descended.Strange entities emerged one after another, as the shadow of evil spread wildly.The calm of life was shattered, and Zhang Xiaoman, inside a fish's stomach, accidentally consumed a system named “World-saving Plan”.From then on, he became the only person among all humans with Extraordinary Power.…Inventing an ancient oath, he established a unique methodology, Cultivated Dark Energy, founded an organization, took Control of the Transcendent, and resisted invasions.Well, this is actually the story of how a Big Con Man bluffed his way into saving the entire world.PS: Contains elements of the behind-the-scenes, Cthulhu mythos.