Kiraware <Kokuma Jutsushi> no Yarinaoshi ~ Yuusha ni Uragirare, Ryou Omoidatta Seijo to Inochi o Ubawareta Ore, Kako ni Modotte Subete o...Kiraware <Kokuma Jutsushi> no Yarinaoshi; 嫌われ＜黒魔術師＞のやり直し〜勇者に裏切られ、両思いだった聖女と命を奪われた俺、過去に戻ってすべてを取り戻す〜; The Despised Dark Mage Lives Again; Kiraware <Kokuma Jutsushi> no Yarinaoshi ~Yuusha ni Uragirare, Ryou Omoidatta Seijo to Inochi o Ubawareta Ore, Kako ni Modotte Subete o~; The Hated Black Magician’s Redo ~Betrayed by the Hero, the Saint He Was in Love with and His Life Stolen, I Go Back to the past to Get It All Back~; The Hated Black Mage Returns

Kai, a black mage, is betrayed by his brother, the brave Ares, and killed along with the demon lord. Ares, the brave, was about to take possession of Collette, the saint who loved Kai. However, Kai, who was just killed by Ares, suddenly woke up and found that time had returned until the day of the [class revelation ceremony] five years ago. Kai knowing the future of receiving the class “Black Mage” and being despised for incompetence and expelled from the aristocracy, with the dark power of level 999 that he took over from his first time, he decided to overthrew the brave Ares and took back his childhood friend, the saint Collette… to change the fate of destruction. A revenge story of the hated who takes back his loved ones and changes the future begins!