In fact, the main part of the series ended last week. This episode should have been a bonus on the last BD, but now it has become fashionable to broadcast such specials on TV. With censorship, of course.
In one of the last Mayo Chiki! reviews, I complained that such gorgeous character as Nakuru gets too little screen time. The situation was corrected here – this episode is entirely dedicated to reckless girl with cat ears and huge breasts: