"A Villainess? But I'll Enjoy Myself Plenty Until the End"

Before I knew it, I was a villain character? What's that? ...I don't really remember, but if this is supposed to be my second life, I'll just enjoy it. Life is all about having fun, after all. *** This is a story about an around-thirty office worker with a basically "whatever happens, happens" mentality who has become a wealthy heiress—a rival to the protagonist of an otome game. Since she doesn't know much about (or remember) the game's contents, she keeps setting up and breaking flags left and right while enjoying her life as a noblewoman. //Revised in April 2016