User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-78.10.210.184-20190828185623/@comment-10330822-20190829061811

I always had trouble understanding that. When they were describing the Malebranche and the Six Houses of Lucifer, I had a hard time understanding if that meant only Vali could unlock the seal, or if anyone could as long as they had Satan blood. Because if the latter is the case, wouldn't Ingvild also be able to undo the seal?