The Omnipotent System - Chapter 1: Transmigration

A master assassin transmigrates into an interstellar era.

Other players were responsible for competing in the e-sports arena, while he was responsible for stringing up and beating up the other players.

His sword was hidden during the peak of day, and he was a gentleman who arrived in a flash of light;
As a vanguard of the eternal night, he was the variable between life and death in the world.

“As you know, the Star League’s difficulty levels are arranged in this way:
Paradise < Simple < Normal < Difficult < Nightmare < Hell < [Tyron Odin]”

- Description from Novelupdates

Step 1: Inherit a creepy old mansion.Step 2: Unlock a cursed system that makes girls fall dangerously in love with you… just by saying “hi.”Step 3: Learn that if you don’t reject them within 10 texts, something terrible happens.My name’s Ren.And apparently, I’m the “Catalyst for Affection-Based Catastrophes.”(Yeah. That’s literally what it said.)My peaceful new life? Over.Now I’m stuck in a house full of magically unstable girls:A sword-swinging elf.A fire mage with zero personal boundaries.A strict class rep who faints if I so much as look at her.And a witch who cursed the bathroom mirror to spy on me.They’re beautiful.They’re powerful.They’re dangerously obsessed.And if I mess this up, someone’s going to get hurt—maybe me.Reject them too late? Game over.Fall for one of them? Even worse.This isn’t a dating sim.It’s survival of the cutest.Welcome to my life. It's not just a harem. It's a hostage situation.

Pei Jin is a black bellied prince. To outsiders he is a kind gentleman and always calm.

Kang Min was the only human to make it past the 600th Floor. After clearing the 666th floor in total solitude he faces death. However, for some reason he wakes up 13 years in the future...But what's this?[Constellation Stream] - Players can now stream their hunts and floor clears to viewers and gods who sponsor coins and promise more power and fame.He is sure to take over faster than anyone...after all he was the sole human to clear 666 Floors.The world-ending livestream of the 666th Floor Veteran starts now!!---Alternatives: Streaming of the Disaster-Class Player