All I could say, unwanted children with parents fighting each other may grow up to be like that, Reiji lacked self-esteem, his sin was "Sloth" indeed. Let that be a good lesson.
People like that can't appreciate good things that happen to them, it's really hard for them to face it, took him too long to understand how lucky he was until it was far too late.
Seems like Mari survived in the end and gave birth to their baby, find it bittersweet ending, since they will probably join the cult...
Michika, Akane and Yumi were the most innocent. Michika had to go through killing her best friend and first love, then live in a body of a child, never receiving true love.
Akane life was nothing but a hell of rape and self sacrifice, she had to fight through her life all the time.
Yumi was used as a sex relief and a play thing by her lesbian friend and although she tried kill her, it was eventually an accident.
Dunno why they were on the list...
It was a good read, thanks for the scanlation to the very end.