You get this sempai-kouhai relationship between the two, as Mami is basically Kyouko's mentor.  It's pretty good, plus has a different feeling from Kyou x Saya.  
The senpai/kouhai or familial bond is where this relationship is at it's best. That's how they really work. Romance just doesn't fit them. 
last edited at Sep 28, 2017  1:06AM