Ryuichi Hasegawa, the top player in a strategic medieval RPG, is granted a special “bonus” by the developer and reincarnated into the game world—not as the protagonist, but as the villainous lord Erhin Eintorian who dies in the prologue! This means Erhin’s survival is a race against time, for his domain is set to be invaded by a hostile foreign power in just one day. In order to save himself, Erhin must use the leveling system that only he can access and his knowledge of the game to prepare his forces. The only hitch, of course, is that there’s no way a villainous lord left a functioning military at his disposal! Can Erhin forestall the tragic fate scripted for him, or is he doomed to play out his own demise? (Source: J-Novel Club)

A protagonist whose reality turned into game; the power of save-and-load bestowed to him; heroines with different and unusual personality traits. This is a story that turns around the whole concept of a romance game.

I’ve become a rogue lord in another world! This is the story of the protagonist, who has become a rogue lord. He dies during the prologue after two days, but successfully uses the game’s history and system to escape his impending doom and become the strongest! (Source: Kadokawa, translated)