I can also confirm she drops on Innocent Madness. In fact she's my most needed unit for my Despara, Sasha and Olivie awakenings. I needed 7 copies of her and after burning through 15 SCs I got 11 Giovannis(which I don't need), 6 Assals(don't need...) and 3 Calliopes. I called it a day cause I don't wanna burn the last of my SCs. I need to come back to this as I really need the extra 4 Calliopes or I won't be able to awaken Olivie and Sasha. fml...