The Villainess Stans the Heroes: Playing the Antagonist to Support Her Faves!, Vol. 1 — Yamori Mitikusa

What's a girl to do when she's reincarnated into her favorite game, and as the antagonist to boot? Simple -- set the stage so that the loves of her life shine, of course! To ensure that the heroes will make the right decisions to save themselves and the world, I'm determined to play my role to perfection. There's just a teensy problem -- I may or may not have interfered in the life of my absolute number one fave, and he somehow ended up as my right-hand man for my schemes. How was I supposed to know that an impulsive choice from my childhood would cause such drastic changes to the story?!