Absolute Duo - Episode 10 - Tachibana Attacks
Tachibana takes sparring class seriously. Maybe too seriously.
Battle technology rivals make wagers using their experimental subjects, but setting up the last few episodes, with a big reference to the 2nd Ending Credit sequence, is Miyabi opposing Tachibana. Since last episode, everyone was worried while Miyabi was gone, but she was just picking out some new clothes.