I think you hit nail on head.
But how Janet end up wearing Madalyn underwear, succubus bodice and stockings without suspenders I ask? Maybe get soaked when swim into Sofia mansion to rescue Sofia, then end up in Church somehow and change into Madalyn wardrobe in order to get warm and dry?
Or will Madalyn use her charms and powers to seduce poor Janet over to the dark side?
Or Madalyn offer help to MC, Janet and maybe other after Sofia rescue which can only end in orgy suppose? More than likely something else I bet. Intrigued. Not long now to wait before discover truth and cross fingers both hand hoping for dramatic story driven update which actually makes some sense.