What a fun chapter. I like that the author spent the time to give us Elsa and Yvonne's first interactions together. Elsa didn't just instantly enjoy Yvonne's bullying. She was confused and bewildered at first. But then she saw the underlying kindness behind Yvonne's bullying. I would liken in more to teasing than bullying. Elsa probably thinks that Yvonne is a tsundere that likes her.
Elsa is extremely perceptive, and keeps a close watch on Yvonne. With that in mind, I suspect she may eventually guess that Yvonne is reading something before she bullies her. When you read, your eyes move back and forth, left to right. It would be interesting if Elsa noticed this and asked Yvonne what she is reading.
The whole villainesses system in this world is fascinating. It appears to be entirely automated. More like a program running it, than a god or administrator. Either Yvonne meets the requirements or she doesn't. The system doesn't appear to have any flexibility. I'm curious what the points can be used for, if Yvonne were to accumulate them. Can the system ever be completed or stopped? Imagine if she is stuck with it for life. And I say these questions rhetorically. I don't actually want the answers, other than in the form of finding them out while reading the story.