極悪貴族、謙虚堅実に無双する ～原作知識と固有魔法＜虚空＞を駆使して、破滅エンドを回避します～

One day, a hardcore completionist of the incredibly complex, multi-ending RPG Ronzorkia finds himself reincarnated into the game's world. Worse yet, he has been reborn as Hollow von Heisenberg... a lazy, arrogant villain fated to die in absolutely every route. "If I don't change things, the game's 'scenario' is going to murder me...!" There is only one way to survive. He must weaponize the exhaustive game knowledge from his past life, completely master Hollow's unique magic, and become the most overpowered existence in this world. His first step? It's becoming the apprentice of his master swordsman butler... (Source: Kadokawa, translated)