Review Detail of WiseJoker in The Extra's Survival

As this is the first book of the author, giving what I gave for the review is pretty lenient. Grammar mistakes are everywhere, breaking my immersion whenever I stumble upon them. The story itself is nothing exceptional. The characters have a couple sentence describing them, nothing like getting to know the characters more as the story progress. The world background is also standard litrpg/fantasy settings, with humans, elves, dwarves, and demons as the enemy. The Author's POV is just a better version of this.