The novel began with an amazing pace, the start with the training, then going to the world of Absolver was okay, but after going to DarkSouls the quality went downhill.
If the system is some sort of remnant of a woman's will, or she is some higher being... then this is really stupid and generic, I've read tons of similar novels…. I hope not
It started well with minor mistakes, then it went down hill. It's full of plot holes, maths in this novel is a clusterfuck. I don't suggest reading this.