Levels with slaves. She's level 28ish I think c137
She's left in charge of the the village’s management and level raising while Naofumi is away pedaling. c139
She is up to level 35 but Naofumi wants her to class up with the others so he says she might have to wait for the others to catch up. c140
Rishia reaches level 40 and is able to class up. Naofumi informs her and the rest of the slaves of the way Raphtalia and Firo classed up and explained that they didn't have a choice in which direction their class up too them, but since they gained stats superior in all fields to most other class ups so it all worked out in the end. He then asked if she would like to do the same at the cost of her choice in direction of the class up to which she declined. c144
She classes up into a "Universal" type as contrasted to her previous choice that focused on close combat with the hopes of becoming part of Kawasumi Itsuki's meat shield rather than directly assisting him. All of her stats grew higher, but not that high in comparison to Raphtalia and Firo's that nearly doubled everything with the help of Firo's ahoge. c145