This show in my opinion garners these high ratings because it attracts all the unsavory, socially frowned upon sterotypical anime fans. The show has been reduced to waifu wars and whose the best girl. When on going discussions like this are had you can tell you are not dealing with the most reasonable fanbase. The show is one big love story with one of the most cringe worthy and annoying main characters in existence. The main character never really changes either , so strap in for 25 episodes.
The story is not even a good one. The premise is quite interesting in the beginning tho. MC basically can come back to life after death in a groundhogs day deja vu sense. He retains all his memories and tries to solve who killed him or how to survive the day. The show quickly breaks away from this focus and branches off into more of a fantasy world with magic demon dogs, talking cats, elfen lied powered cult leaders, etc. The problem is the show kind of just switches to something else and not what you expect it to be early on. Show appears more gritty and dark, hopeless and then gets relatively light later on. It still manages deaths and etc but it focuses on power of romance and friendship without resolving mysteries of the world.
If an anime finishes at 25 episodes but there is more source material to explain and answer questions, I still rate strictly on the 25 episodes. I doubt other fans do this and figure in part of the story or details that haven't been animated. That being said Re:Zero in it's 25 episodes fails to even explain how the MC came to be in this fantasy world or provide hints. It also fails to explain much about his death restart ability, or much about the various magic,creatures, and such in this world.
The show is a let down and based on the beginning and not deserving of such high ranking. It's overhyped and overrated and that's the shortest way to sum it up.
