And it's done. Railway to Hell, fully S ranked. The green team that led me to victory was +15 Meat Bun Bub-chan, +21 Black Cat Bub-chan (married and with her unique Shopkeeper fetish perk), +15 Bellydancer Sariel, +15 Mammon (consonance maxed, most of these consonances were maxed or at the 2nd highest level) and +15 Festival Bub-chan.
My prize? A random set of LR mirrors. And in a kino stroke of luck, it was a set of Satan mirrors drawn to my Bub-chan team.