In my opinion this anime is underrated... The dash, the plot and the way this series works on emotions deserve 7, maybe even 8 out of 10 stars. The only thing I can fault is what the first episodes looked like... very typical for this type of anime and it was quite boring. However, later this changes and the main character turns out to be a real badass. Overall, I would give it a 7, but looking at the ending I can easily give it an 8. I think it's worth watching. This anime reminded me a bit of "Kaguya-sama: Love is War"