Yuusha no Ateuma de shika Nai Akuyaku Kizoku ni Tensei shita Ore ~Yuusha dewa Oshi Heroine wo Fukou ni shika Dekinai node, Ore ga Kanojo wo Shiawase ni Suru Tame ni Game Chishiki to Kajou na Doryoku de Scenario wo Bukkowashimasu~

The protagonist, frustrated that his most beloved heroine in a game, Servia, can only achieve a happy ending by becoming part of the Hero’s harem, plays the game repeatedly trying to find another route. One day, he wakes up and finds he has been reincarnated into the game world.

However, he was reincarnated as Cain, the villainous noble who is Servia’s fiancé but torments her and is defeated early in the story. Knowing that if he does nothing, the Hero will eventually steal Servia away and kill him, Cain decides to smash the game scenario and seize a future where he can be happy with Servia.