Toshiaki Gozu

A regular man from his own world is teleported into the game world that is real. After dying from a gunshot he found himself as a mob assassin hired to kill the demon king Evelogia. Recognizing the world as one in a game he played as a child Gozu is thrilled to identify the demon king particularly since he was the only one who ever inspired him. Loving Eve dearly Gozu also uses what he knows of the game story events to avert them and prevent Eve from being killed by the hero.