I'll Tame the Crazy Female Lead

“You b*stard. Today, I’ll finally slit your throat.” Brilliant blonde hair, innocent eyes resembling violets, and a beauty that instantly captivates the viewer. The girl standing before me is clearly Beatrice, the female lead of this novel. But why is the fml throwing a teapot and crushing a teaspoon? “I will make you pay the price for daring to mess with me.” One day, the heroine suddenly went insane. And on top of that. [Caution! Plausibility is collapsing. Please fix the collapsed plausibility!] [Failure: World Destruction] I’m told I have to tame the violent fml back into the gentle fml from the original story. Wait, but why did the fml suddenly go crazy?! “Who am I? Na...