This anime is a must watch. It is very good and I loved most of the music, character designs, crazy fights and overrall the action in this anime. This anime made me feel very close to David, Rebecca and Lucy in a way that I never imagined. I won't give this review a 5 star because I feel like the anime could've been a little longer and the creators of this anime could've atleast put more detail to smooth out the anime after the ending. I'm gonna talk about the ending. The ending is this anime, if you are sentimental like me, you ARE going to cry a lot, like, I finished the show 10 minutes ago and I'm still thinking how bad they did Rebecca and David bro. I swear, I would've liked it a much better if anything would've happened to Rebecca. I don't know why but I felt very attached to Rebecca. If you are someone that gets attached to characters easily, please, do not get attached to the characters in this anime or else you will regret like I did. This is my personal opinion, but, man, I really loved Rebecca just because of the crazy, fight loving girl she was, as I said earlier, It would've been much better for me if Rebecca hadn't died but, now, there no turning back. Anyways This anime is a must watch. It is pretty amazing and overrall fantastic in terms of how they made the fights develop and stuff. The music is a 10/10. The music at the ending was the main reason why I started crying while watching (spoiler) Lucy go ti the moom alone imagining David was with her. Anyways, pretty good anime.