After the Affection Meter Hits the Max

This is a story about a girl who is more ruthless than the heroine, plans to max out her favorability with every male character in the book, and ultimately aims for an NP ending. While recklessly raising their favorability, she is pursued by her grandmaster and forced into a 1V1 relationship. [At the end of the story, all she wants to say is: Give me back my NP!!!]