The Crimson Sacrifice ritual is to appease the hellish abyss from which Darkness and Malice pours if not satisfied. After being cleansed two twin children of the village are brought before the abyss where the elder twin strangles the younger. The child's spirit becomes a butterfly and their body is offered to calm the dark, the twin left behind is called The Remaining.

*The older twin is the one born second due to Japanese Tradition.