So i've noticed that Mafumafu's songs, Hello Dystopia and Merry Bad End are linked but they also seem linked to some of Maretu's songs like Mind Brand, SIU etc. (Possibly Neru too, not sure yet) All their songs seem to have the same theme, seen as in Merry Bad End, the character seems to have been getting bullied by character of Hello Dystopia and then she could have committed suicide by beheading herself, ans seen in Mind Brad (by Maretu)
Any thoughts on my theory??