Stylish_Demon

"I am an evil god. Would you like to make a contract?"

In "Phantom Heroes Online," a VRMMO where in-game currency can be converted to real money, a man, worn out by society, decides to quit his job and earn a living through gaming. 

In this fantasy world of swords and magic, players contract with advanced AI NPCs, aiding and nurturing them.

The protagonist, Zephyr, whimsically tells a young girl a lie, claiming to be her savior. Believing Zephyr to be the "god who rescued her from despair," the yandere girl transforms into the formidable "Reaper Loli," a top-tier berserker feared as the "Fanatic" across the continent. 

She rises to become one of the game's top players, dominating the leaderboards.

Unbeknownst to Zephyr and the other players, their actions in the game are actually leading to saving of another world.

VRMMO: My first Contractee is Yandere

He drags his right leg because his thigh is deeply gouged. His appearance, with his intestines hanging from his abdomen, evokes a pitiful sight.

The undead form retained the semblance of its living self, with added decay.

This means the elven prince, even before becoming undead, spent centuries in this state, alone in the treasure vault.

Clinging to the hope that one day, his elven kin would return to retrieve the Divine Artifact—

"Even after becoming undead, he never lost sight of his purpose. As expected of the brother who was once destined to be king. As your unworthy younger sister, Remelia Elfland, I shall face you with my staff."

'The elves will not be defeated! I won't allow anyone to be lost!'

"Indeed, I will not allow you to kill any elves, Brother. The elves will not know defeat, and Brother, I will cleanse you here and now."

Against the undead Prince