I Became a Nobody in My Favourite Novel - Chapter 21: “First Day of Classes”:1

Have you ever thought a monster that has a job of a summoner and a tamer

what should it call itself Monster Summoner? Monster Tamer? but he itself was a monster too

Watch as our mc travels the world as an reincarnated human who turn into a monster

Synopsis ___________________ Viretta Medlit is a hopeless braggart. One day, she casually boasts to a young man she meets about her unfortunate arranged marriage, only to discover that he is her fiancé. To make matters worse, her exaggerated claims stir something within him. “Are you prepared to face any hardship?” “Of course. If it's for the one I love, I’d even hunt a dragon!” “Then let’s go hunt a dragon. And break off the engagement afterward.” Thus begins Viretta's journey to hunt a dragon… All in the name of breaking off her engagement with a fiancé she actually finds quite agreeable!

Argon got Isekaid to another world, and also got a system that can help him build a dungeon in a cultivation world, where people can get amazing treasures inside.And for our mc to get enough resources for upgrading the dungeon he also needs to kill the people that will enter his dungeon to get soul coins that will help him upgrade the dungeon.In a world where cultivation is the key to power and strength. Argon has the power to create dungeons - underground labyrinths filled with powerful monsters and valuable treasures.Using his unique abilities, Argon creates a dungeon in the heart of an unknown forest, hoping to attract powerful cultivators and increase his own strength. But as his dungeon grows in size and power, the top powerhouses in the world realized the danger of the dungeon, since the dungeon would pour out unknown monsters that will wreak havoc in the world.To survive in this new world, Argon must use all his cunning and strength to navigate the treacherous world of cultivation and defend his dungeon from those who seek to destroy it.