Rails — in D&D and Pathfinder games are the plot lines. GM creates these "rails" so that the players successfully go along with the plot and finish the quest, but there are characters that are CHAOTIC EVIL (CE). These badasses don't care about anyone, so they can do whatever they want without any regret. So when there is one CE it's bad enough, but two of them? Well, you're screwed :D. So the party rides on a train without rails, just on the solid ground! Imagine that XD

Anyways, characters are Beatrix, an ice elementalist, who wears a donald duck helmet and Asuna — a kitsune.

Beatrix is based on Trixie Lulamoon, she is extremely curious and greedy, likes to have fun.
Asuna isn't based on anyone