Lord_of_Potatoes sorry, having a headache and difficulty to read through now.
The story is good! I'd score it 4 or 5 for every point except updates and world which I can't tell yet, haven't read much.
The story and characters are nice, the broken speech of the younger sister is interesting!
So is the way Blade plots against him.
I wonder why you don't have more interest - probably because there's no hook or really cool thing to catch a reader in the title, synopsis or first chapter?
Maybe put 2-3 paragraphs of AFTER he has gained power at the start? Then flashback to the start of the story?
Something like, "On that fateful day, what I had thought to be disaster turned into a world-changing encounter. One that would change me and my sister's lives forever.
Brimming with power, I could barely suppress the desire to pay back those who plotted our suffering..." etc etc
So that a casual reader who is just looking for cool stuff can read it and look forward to him rising up in power - and finds the motivation to go through the beginning chapters.
I find a large part of the audience on WN is quite young, with short attention span. They have so many novels to read. So if the first few parts aren't "cool!" enough to hook me, I might give up.