Mameda faces the next four heavenly kings, Enshi Kirno. She needed to tell a story perfectly. However, it seems that she collapsed half way from preparing for three days, but she still passed for the effort.
The 11th episode is more interesting since it focuses on Bunko's past. The more interesting part is that Bunko was a vengeful fox spirit. Maybe it's why she took in Mameda since she can relate to her after going though what happened.