Woo, the new girls were cute enough I took a stab at the gacha in spite of the poorer odds and manged to get 4 new golds and a new rainbow! I got the set of Nightshade and Larkspur, along with Water Hyacinth (hell yeah, pirate girls), [Radiant Princess] Anemone and Ghostweed!

Larkspur's introduction says she serves Solanum, which I assume is Nightshade's alias. And idol Anemone still doesn't have an introduction.