>>266189are you blind? Rika is friends with both girls in this book and Gotsuki's little sister Mei is in the same school with them so this is clearly in the same world but takes place in another school, plenty of character development since it's only about 2 girls and 2 guys and no crazy incest and student X teacher sex if that's what you're into. This story clearly takes place years after Fuugas last book considering how big Rika and her sister Yuki have gotten
if you need a refreasher course, Rika and Yuki are the younger sisters of Ayu and Kanna, Gotsuki is Kanna's boyfriend from waaaayyyy back in "Door of Invitation ~ Yuuwaku No Tobira"
on another note it's mentioned that Rika has a boyfriend..... WTF did that happend!? She's been a major character and has made apperances in all of Fuugas works and I want to see a story about her ALREADY