Eiko got some sharp eyes. Need more of Eiko and sensei even though it is so bad for my heart because of the amount of tease but I'll gladly accept it. TAKE MY MONEY! Bless these chapters.
The relationship between Eiko and her sensei just looks like lust of some sort; the relationship between Eiko and Karumi is a deep and abiding love of some sort. Maybe that love isn't romantic, but it's far more appealing to me than a sexual relationship between an adult and a child.