The art in this manga is fabulous. The girls are so sexy!
There are few authors who can correctly illustrate the sort of sexiness that is specific to teen girls and that women lose when they become adults. Know what I mean? The sort of sexiness that turns you into a Humbert Humbert, lol. When you compare the schoolgirls in the story with the tanned sensei (who is hot stuff, but not a teen), the difference becomes quite obvious.
This author is one of those who can do it. Oh yes. Nene & Amane had that popsicle sharing scene in ch1, and now Amane and sempai have that scene on the sofa, where the erotic power is over 9000! I'm surprised they don't set the sofa on fire, lol. And Nene seducing Kou-chan... wow! Iwami Kiyoko has progressed a lot since Toumei na Usui Mizuiro ni.