Author I hope you read this.My true rating is 4.4 but I saw your pitiful overall rating so i decided to improve it a little. It is a good dungeon novel but not enough to be on the top. I think your fighting scene is too long and sometimes you took atleast 10 chapters for just a mini boss fight to conclude. One more thing, I don't particularly like your dungeon set up, it's chaotic and there is no order and logical reasoning on it, Like glaze to forest to interior of the caste? to interior of the castle? to an Ice cavern? last one, your dungeon is already in the cold environment and then the theme of your dungeon is still cold. And I know that Niflheim is on the title but dude, make it warmer. Imagine, you can find a warm place in the coldest place/continent which is the dungeon. It will lure more adventurer for its uniquenes, relative to the environment. If you know Danmachi you can get my point.Remember, a dungeon novel is a sandbox novel, so make a world.Good Luck. I'am writing and giving reviews so I can improve my english. So pls rate my english.