I Reincarnated as a Villainous Noble, Nothing More Than the Hero’s Foil: Since the Hero Can Only Bring Misery to My Favorite Heroine, I’ll Use My Game Knowledge and Over-the-Top Effort to Rewrite the Scenario and Make Her Happy

Native title: 勇者の当て馬でしかない悪役貴族に転生した俺 ～勇者では推しヒロインを不幸にしかできないので、俺が彼女を幸せにするためにゲーム知識と過剰な努力でシナリオをぶっ壊します～