Yes I have seen over 50+ animes in my life and some do not get enough credit or do not have more seasons. This was a lovely storyline! It made me cry a few times and liked the animation though it was not accepted by some...
It had really good opening and endings..
This anime is called Casshern...If you liked deep thinking and makes you wonder and question life...Its those type of animes....It was lovely for me.
That I actually bought the life action of it and was good!
Here is one of the endings I loved, decided to get a translated one. Not the actual ending video.But check it out later if you interested! it is a bit mecha but good!