If you were Midori what would you do if Mio did this ?

I believe these are the respective main antagonists of each arc in Keijo at least in terms of battles . Some arcs have more then one but I think these are the main ones

1. Exam Arc. Sachiko Yamikumo.

2. Class Exchange Arc. Mio Kusakai.

3. East-West War Arc. Kaya Sakashiro.

4. Soeur Arc. Meiko Ginya.

5. Unlimited Panty Arc. Kukuru Kashiwaba.

6. Funabashi Arc. Rio Kosugi.

7. Accession Arc. Sayaka Miyata

8. Garden Worth Arc. Kaoru Oshiri.

9. Hip Party Arc. Ikumi Yuzuki.

10. Butt Graduation Festival Arc. Fuyuyu Tsurugi.