Lilith and Nyx are common enemies in this game. Nyx does this weird operatic singing when she casts spells.
I’m buried under a sudden glut of sidequests: the arcade game in Asakusa, the collector Manikin’s hugely expensive Magatamas (195K Macca overall), the Amala Labyrinth, and my main quest. But it’s not like I really need any more Magatamas right now. I don’t use a majority of the ones that I have. Other demons cover the bases I don’t.
I’m not going to face those sisters unless I can get Kelpie leveled up enough to learn Diarama- and possibly fuse him into something that inherits it.