Allright. That concludes it. So Momoko has child custody and since she brought Haru up, I guess her studies were bad. What a shity household without a farther to and not the real mother to be raised. It all will bite Haru in the ass when he learns about the circumstances. 3 lives fucked up Haru, Momoko and Wakaba. Not to mention the surroundings like Momokos brother and Kanzaki (who seems to stay single forever) for supporting this shitshow. "Good people" taken advantage, don't getting a stable family and procrastinate their "good" genes with 2,3 or more childs, but take up the task to raise a being with genetic predisposition for child neglect, violence and rape.
Sure it is a wholesome story on the micro level, but on the macro level its impact can't be underestimated enough. Society demise in a nutshell.