In the backstory, Persephone Brimstone was once part of the supervillain organization L.E.G.I.O.N and part of their plans for world conquest, as well as married to the Minister of Envy. Persephone learned that L.E.G.I.O.N’s leader, the Morningstar plotted to harvest the power of Dark Matter to alter reality and ascend into godhood. Persephone put a stop to those plans and took off with an airship called the ARK, and in retaliation, L.E.G.I.O.N. and her husband launched an attack on her home city of Paris. Having turned against L.E.G.I.O.N completely, Persephone used whatever recourses she could get her hands on to form M.A.Y.H.E.M and take revenge on L.E.G.I.O.N.