Dominion's End - Volume 3, Chapter 1: The Guard Tower

Setting in the fictional world of Gaia, where special individuals can awaken certain powers within their soul. They are called Arcana Masters.

Some awaken beasts, some awaken weapons, while some awaken the power of plants.

Some people train to become stronger so that they have the power to protect loved ones, some wish to use it for revenge, some wish to live longer, while some want to be free and use their power however they wish.

Yet, there exists a clan, where the descendants only exist to grant death to others so that life and death remain balanced.

Follow the journey of Azrael Garcia, the heir of the cursed clan of Death, as he forms friendships, facing betrayals, meeting love, and cutting down the enemies in the process.

One day, I woke up only find out that I’d become a Demon Lord, an individual responsible for protecting a dungeon. The world I’d been spirited away to was one filled with violence. Gigantic monsters wandered through it and competed with each other each and every day for the right to survive. I had no choice but to strengthen my dungeon’s defenses in hopes of living another day—or at least that was what I’d thought. For some odd reason, I instead ended up spending my days in relaxation and bliss.

Zhou Wenwen, who had traveled to a parallel world because of sudden death, thought that he could only live in such an ordinary life in this life, but the golden finger finally opened. He has a store where he can buy technological items and magic equipment to ensure his survival.

But the threat that followed made him realize that this place is not ordinary, because there are Transformers, Marvel, the Dark Portal from World of Warcraft, etc.

- Description from novelbuddy