Naruto System in One Piece - Chapter 520

800 years ago, 3000 dimensional gates opened across the entire world. In that moment, it was as if 3000 different colored eyes opened across the world as hordes of monsters swarmed out of these gates like tears.

Some could destroy city walls with one strike; They had bodies the size of a giant and fed on humans

Some latched onto humans, absorbing their bodies’ nutrients and enslaving humans

Some infiltrated the humans’ cities, disguising themselves as normal human beings while feeding upon human blood to sustain themselves.

In a night, the Human race fell to the bottom of the food chain.

The world had turned into a paradise for monsters…

- Description from Novelupdates

【Host, host! I might be late, but I, the Femme Fatale Conquer System, am here to accompany you!】

【Now, let’s first conquer Momoana, a legendary female emperor who boasts looks and wits.】

Shu Yichao: “Charge, my nomads! Show them our unrivaled archery!”

And so, Momoana died.

【My host, I’ll assume what happened earlier was an accident. We have to succeed for the next one. Our next conquer target is Purin, a lofty and cold sorceress.】

Shi Yichao: “Clear the mobs and stack skeletons! I shall bring the undead calamity upon the world!”

And so, Purin died.

【…Maybe you didn’t hear me clearly, my host. I said court her, not cull her. Our next target–】

Shu Yichao: “Build the hive and spam the worms. My hive mind shall devour the world! Who can compete with me?”

【…】

Shi Yichao: “Halleluyah! I have finally gotten rid of every single one of them! Speaking of which, System, it has been a long time since you last spoke to me?”

【I’m tired. Just go and destroy everything.】

Following a regrettable teleportation gate incident, freshly graduated spatial mage Tila found himself in a strange bipolar world. On one side are the sexless humans, completely isolated from the rest of the world inside their domes. On the other side lies the bustling outside world, composed of a myriad of non-human species.Should he focus on the humans and teach them a thing or two about their bodies? Or should he mingle with the spirited outside species?Of course, he shall do both, by becoming the sole true interspecies trader!

High school student Misumi Makoto is called into a fantasy world by the god Tsukuyomi, in order to be a hero. However, the Goddess ruling the world isn’t as thrilled to have him there, and kicks him to the edge of the world. Tsukuyomi declares that Makoto is free to find his own way after Makoto is abandoned by the other Goddess.