Aha, the girl here and the one in the other book are sisters, and the teacher here is supposed to be getting married (I think) to the older sister of the two heroines. Interesting.
@Newprimus Close. The 2 main girls of this book and the other book are not related, but are just classmates (names are completely different). The Teacher is getting married to this older sister of this books main girl though.
Not all of us go for traps, and in my case this awesome doujin would have been a real downer for me if it was. Thank you abgrund! Can't wait to see this one translated too. I love all Saikawa Yusa's works except for the yaoi ones. Hope we get more like this at C85 too. :)