Global Reincarnation: Only I Know the Plot - Chapter 925:

One day every human on the world suddenly receives a mail claiming to enact the World Salvation Project. Half in doubt Kurosaki Shion, a diligent university student and loner, follows the mail’s instructions, becoming one of a million Demon Kings governing his very own Domain in the new world.

*** This is a post-apocalyptic story containing many fantasy elements. It is a somewhat dark tale following Shion as he grows while aiming for the unification of the all too sudden new world. It has many game-elements bolstered by strategical thinking while at the same time providing funny moments and romantic encounters.

Following a brutal and tortured death, a former assassin, known only by his codename Kuro, is given the opportunity to reincarnate in another world, a world with magic and monsters. Armed with an unrivaled healing factor and an inhumane pain threshold, Kuro opts to go for a reckless direct approach in this world instead of a stealthy and cautious one, and as a result, slowly gains attention bit by bit.

Having previously been a loner in his old life, he interacts and befriends people for the first time in his existence, however, his blunt nature also sees him making just as many enemies, both big and small. By combining his old assassin skills with the magic powers of this world, along with his high resistance to pain and rapid regeneration, he doesn't take long to establish himself as a formidable force in this world.

Initially, Kuro only faces minor threats, like weaker monsters and bandits. But before too long, the threats slowly but surely become more and more severe…from Zombies to a bloodthirsty empire to Vampires and Demons, and even divine beings…however, as the enemies he faces grow stronger, so does Kuro, gaining rare powers that have never or rarely ever been seen in this world…

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]!

With the ability of the King of Silver, the first king in “K”, to be immortal and immortal, he crossed into the world of One Piece. Although he became a Pirate, he did not target One Piece.

His goal is to live freely on the sea, it’s that simple.

- Description from novelbuddy