User blog comment:TheJudicialDoll/New Mothy Song - "White Brick and Black Mourning Dress"/@comment-75.117.134.49-20190427164154/@comment-2600:1702:3EC0:4B80:8D12:F14B:7916:BF71-20190427171233

A fan work...? By mothy?

No, there's no indication that it's canon to Evillious at this time.