Clearing an Isekai with the Zero-Believers Goddess – The Weakest Mage among the Classmates - Chapter 355: Invitation Letter – (1)

The World of Ephesus. A vast world plagued by Breaches containing countless Beasts of Corruption. A World on the brink of ruin as the Four Human Lineages defend the last bastions of Humanity! With the power of Gem Masters standing against the Beasts of Corruption, the flames of Humanity seek to burn ever brighter. In such a world, in the Mortal Branch of the Asmodeus Bloodline, Alexander awakens a Gem Socket that others consider defective. A Variant Gem Socket. Looked down upon by those who do not understand it, this supposed defect may just be the solution that the burning embers of humanity were waiting for. Follow Alexander as he entirely warps the perception of what a Gem Master is- as he embarks on a journey to become...The Empyreal Gem Master!

Entered the academy in the game.

With unbalancing skills that destroy the balance of the game’s original storyline.

Longevity Celestial Dynasty, Nine Years of Destiny.

China is in chaos, and the people are struggling to live.

The imperial rule collapsed, and the Western barbarians attacked with the religion of the gods.

The new warlords are everywhere, and they are divided into one side.

Natural disasters such as floods and droughts, the overturning of the earth dragon, the sandstorm tornado, the acid rain, the red moon, and the falling of meteorites have come one after another.

There are also countless monsters running rampant, strange clusters, ghosts and ghosts, indescribable monsters, or mysterious phenomena that cannot be understood.

In this dark and chaotic world, Tao Qian opened his eyes and found himself a prisoner who was about to be beheaded in Caishikou…!

- Description from novelbuddy

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –