Bog Standard Isekai - Chapter 4Book 1:

Ethen Cole travels to an era where everyone battles with pets. In a world revived by spiritual energy, danger and madness run rampant. Humanity relies on battle pet masters to establish bases and unite for survival.Before the college entrance examination, Ethen Cole is framed and expelled from school, losing his chance to study at the Battle Pet Academy. Just as he feels despair, the Battle Pet System for battle pets activates.“Ding! The Blue Riolux has evolved into a Emerald eyed Riolux!”From then on, Ethen Cole begins his legendary career as a battle pet master.

[You Have Been Chosen.]When the world crumbled, I was nothing more than a jobless loser, left to rot on the streets as the dead devoured the living.Until I heard that voice...[The Ruler System has activated.][Rank 1: Loser][Followers: 0/1]A system that lets me recruit followers, copy their skills, and grow stronger through their actions.My first subject?Mu Qinglan.The ruthless Ice Queen CEO I once called “Boss.” Cold, untouchable... and now infected.As her bloodthirsty jaws closed around my neck, I barely saved her with the system’s makeshift cure.[You Have Recruited Mu Qinglan (S-Tier)][You have copied Mu Qinglan's [Leadership] skill][Please Choose the second skill to copy][+100 Ruler EXP]Every follower I command strengthens me.Every kill feeds my dominion.In this world of death and chaos...I will build an empire of S-Tier Beauties and ascend as the Apocalypse King.For my name is John Wang!

Crossing into a different world and impersonating the Lord of a city, a city encompassing five hundred miles, an elder sister having celestial beauty, and double digit number of lovers.

Tasked to revive a perilous family, Lanling, a third year university student, felt an overbearing pressure on his shoulders.

Hosting the Demon Star in his body, he can directly devour other people’s force and make it his own, he crossed through with a sole mission: To Utterly Destroy This World!

From being the Lord of Tianshui City, becoming the Queen’s husband, to being the World Destroying Demonic Emperor, he became the King of the entire world.

- Description from Novelupdates