Only thing that I don't really like is Klein's main goal of returning to the real world. To me the world Klein is transmigrated in is much more interesting and there's also a lack of any emotional connections for the readers with earth. The story starts off after Klein had already transmigrated and I find it hard to empathize with Klein's end goal. However, due to the nature of the story, Klein is focused on smaller goals like increasing his strength and understanding "magic" better so I don't really mind it that the end goal seems anticlimacting.
Another very interesting aspect of the story is the magic system. Without wanting to spoil too much it basically involves the characters obtaining powers through artificial means and slowly getting accustomed to them so that they can the obtain the next tier of powers. The higher the tier the harder it becomes to achieve this.
Honestly no matter what I say, it won't be enough to explain how incredible LOTM is. Do yourself a favore and read the first 50-100 chapters of LOTM and trust me you'll get hooked as much as I did. One piece of advice is to avoid the webtoon. I also read the webtoon first and tried continuing the book from where the webtoon ended only to find out I didn't remember anything. The amount of details and interractions the webtoon skips over prevents you from sympthising with the characters. I ended up rereading the book from the start and I was surprised at how many things I had missed. The webtoon also does a bad job with roselle's diary, a crucial part of the story at the beginning and while it's one of the things that I looked forward to as I was reading the book, I hated them when I was reading the webtoon.
