Set 13 years after the original series, the story focuses on Miki and Yuu's little siblings.
7 Volumes (Complete)






I agree with rozzak here where the twins relational development kinda feels forced, also middle school crushes are not so easily overwritten by a little brother you start to notice. We also get a healthy dose of complicated family ties from all of the prequel characters... kinda re-using characters.
One saving grace is the MCs facial expressions, pure amazing.
Taking a close look at your brother (not blood related) and realizing that he's developing secondary sex characteristics does not make you go doki doki. There's a distinct evolutionary instinct that prevents said interactions to avoid incest.
Basically if the girl has a regular brother-sister relationship, without the slightest pseudo-romantic/sexual leanings, she's not going to get all wet when he decides to go full shoujo guy on her. She's gonna get creeped out and break off connections. Honestly, the entire main pairing just feels creepy to me. They look like twins in the first place, but it lacks the dramatic edge of twincest so it's just kinda gross.
Let's face it: the whacky living situation of the main characters is the most memorable thing about the original series, and how Yoshizumi managed to play it almost completely straight. We revisit that craziness here, only it's kicked up a notch… these protagonists still aren't related by blood, but they are both related by blood to Miki and Yuu… doesn't get much crazier than that and still manage to be PG…
It's cute and has potential. The original is one of my all time favs, so I can accept the strange family set up. My two biggest complaints are the characters young ages (I feel a little old to be reading about 13 year olds in love…) but mainly:
The fact that Miki and Yuu have been living together all this time and never got married! Seriously? It's not just that I find it a bad example on a moral level, but the last chapter of the first series was literally Miki and Yuu tearfully pleading their case to their parents about why they should be allow to GET MARRIED. So, what… if they HAD been real siblings they would have headed straight to the church, but because they're not, they just don't?? I do not see the logic.