When Netflix decides to invest in anime series they really put the bar crazy high as they should since Netflix isn't the main platform for animes but this series... I had zero words after finishing. It contains 13 episodes with 26-30 runtime and I can promise you: you went get bored. I just binge watched all the episodes without breaks because you cannot really disconnect from this amazing masterpiece. At first, the animation: no words, beautiful. All the details are perfectly made. Secondly, the voice actors are amazing. Now the storyline: intense, you constantly get the impluses, sometimes cute and happy moments, sometimes sad and gloomy. I cried, I laughed, I smiled. All the characters are beautifully written with likeable characteristics and cute, sometimes scary demons. My last thoughts are that this is a masterpiece and deserves popularity because there is no miss in here and since the end is fantastic so if this one gets scrapped you won't feel emptyness but if they renew it there's so much more that they can add since this universe they created have many-many new paths they can explore.