My Best Friend is the Losing Heroine

This is a sequel to "My Brother is a TS Alchemist Villainess" that I posted before. The title says it all. The punchline is in the title. This work becomes a festival of complaints and resentment from the heroine, who failed to reach an ending befitting a heroine as a heroine. ※This is not a "serves you right" (post-serves you right) story. The villainess didn't act as a villainess and didn't follow the heroine's path, so the heroine couldn't become perfectly happy. That's all there is to it.