My Muscle System in the Mage World - Chapter 20: Talent: Future Seer

A city of academies where high school girls converse with swords and spears in hand.A comedy character who loves macarons and a cup of tea.Becoming a pink-haired dummy in a mobile game, acting as the weakest character with the pretty filter in my mouth and body.Yet in my heart, a man’s fighting spirit still boils like lava.“What a cutie. Ohoho☆”

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.