This is a guide to her storyline:
It is relevant for version 1.7.0, the link to the full guide is below.
https://ru.scribd.com/document/815618272/Randel-Tales-Beta-1-7-0-3-Guide
I don't know if there is anything malicious in it, but I found it on the first page of Google. I recommend playing the game without a guide first to get a better experience.