This one is a "Must Read book".
Is well written with a lot of details to help you get immerse in the story and the world of Rudeus.
realistic character development not just the MC but also the other characters, it is a slow change resulting of the different realizations that each character reach as they grow up and not just a twist of personality caused by a major event. Great twists in the story. Well is not finish that's is the only bad point and that the MC is a pervert. I pretty much read every chapter publish so a can assure you the quality doesn't drop.
That's all; i just gonna let that the work speak for itself you just read the first volume my friend and you'll see