A Record of a Mortal's Journey to Immortality: Immortal Realm - Chapter 631: Leverage

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

[ DING ][ Common Sense Hijack System Activated ]----That notification was the start of a whole new life for Karl. He who just used to be working at a convenience store and always getting annoying complaints from customers and some shady words from his manager. Become a totally free man who can flip common sense upside down!******

Alternate Title: Kumo Desu Ga, Nani Ka? - Game SystemElliot? Yeah, he got isekai'd. Bam! Straight into the world of “So I'm a Spider, So What?”. And guess what? He wasn't some puny human or, well, a spider. Nope, he lucked out and got reborn as a freakin' Earth Dragon!But wait, it gets better. Ding! He awakened the 'XX Worlds Game System'. You know what that means? Skills! Skills from all sorts of crazy games!And the kicker? His new neighbor in the sprawling Great Elroe Labyrinth was none other than the little spider gal herself, Kumoko!So, what happens when two totally broken characters end up living next door to each other? They team up, duh! Their genius plan? Hit all the poor monsters in the Labyrinth with a two-pronged attack! A good ol' fashioned sandwich maneuver!But Elliot had a little secret. “Heh, sorry folks,” he probably smirked to himself, “but your boy Elliot here? He's playing with cheats activated!”Skill Acquired! [True Man's Slash]!Skill Acquired! [Skull Splitter]!Skill Acquired! [Planetary Devastation]!