I think that the author didn't really want all the tragedy but this kind of turned into a giant rolling snowball... So he just went "F*ck everyone, I'm out" ... And he just did that and Parallel Paradise was born.
@Limemaster@lastKANAshimi I haven't read this in years so I had to search up character names, I think the little girl is Kazumi in a new form, the one watching them on the left is Nanami in her second form called Aphrodite and the shadow is probably Kotori. From what I've read its more obvious that the little girl is Kazumi in Japanese because she speaks in the same accent.