>>535201178
I've read that story 3 weeks ago. She says that she had a lot of false friends who were with her only because she was a very promising students with various clubs like Tea Party or Sisterhood asking her to join multiple times. She was tired of it and at some point she met Seia. Soon after that she decided to ruin her grades and act as scandalously as possible to see who were her actual friends and who was just there to have a friend in a high place. And the moment Hanako figures out in Ch2 that if she fails her exams, she'll drag the rest to the bottom, she instantly stops. She also never does act that way to intentionally annoy Hifumi or Azusa and as for Koharu - getting her to finally admit that she's a pervert/smut addict is the first step on her way out of that addiction. Addict will never recover if she's be in permanent denial.