Listen up this anime has it's very good quirks including, the mind blowing plot twist, mind fucking time travel, and it's little bit of romance to the end. My only problem is that to me the show is very slow and boring. I also really have a problem with the characters they don't really explain it great, on top of that the way the show starts i did not know what the fuck was going on, but as i kept on watching everything started to make sense. This anime really leaves you on in the end to want to know whats going to happen next and how to find a way to save Mayuri Shiina from dying. Let me conclude this by saying the anime is good but it's not a masterpiece either, and for me what really made me almost drop the show was the begging was so all over the place, but hey thats just my opinion you might have another and that is perfectly fine but to me it just really overrated.
Other than that i hope you like my almost easy to understand review.
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