The reason it makes the list is that we have a unique main character here. Normally, we get teen protagonists who have barely lived life. Satoru is guy who is unsatisfied by life but works his job anyway. Also, That Time I Got Reincarnated as a Slime has a really nice pace to it. It’s not sluggish but it isn’t fast. Or I should say that the pace hasn’t slowed to a crawl or picked up.