Mercenary Harem in Murim Novel - Chapter 12 - – Problem Solved, Another Arrives

The boy who Sneaks in My Bedroom Window

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

After a cruel betrayal in the hands of people he thought he could trust, Ethan Carter lost everything—his idea, his future, even his life.But when he wakes up fifteen years in the past, he realizes fate has given him a second chance!And this time, he’s not alone.[Ding!][OmniTech System Activated!]With a system guiding him and access to groundbreaking technology decades ahead of its time, Ethan was about to rewrite history!Supercomputers? AI? Quantum processors? Bioengineering? The system provided blueprints to all.Now, armed with the knowledge of the future, Ethan will rise as a tech industry giant, crush his enemies, and build an empire that no one can overthrow!Wealth, power, and revenge—this time, he’s taking it all!