Fate Zero

Fate zero is a anime which consists of 2 season. 13 episode in first season and 12 episode in second season.

Genre : Action,Dark fantasy and Tragedy.

Don't take dark fantasy as kinky stuff, here dark fantasy mean the dream of people which they want to fulfill in any cost.

Fate zero have amazing story and people who like action and interest in magic kind of anime with intense story can see that. 

I personally like it, it's about Holy Grail War, a secret magical tournament held in every 10 year Fuyuki City, Japan. In this war 7 masters have choosen and there are provided with 7 servents who are heroic spirit reincarnations of legendary souls and heroes from all across time, where they fight in a deadly battle royale where the winner obtains the Holy Grail, a magical legendary chalice capable of granting wishes.

It main character is Kiritsuga Emiya. In later episode his backstory is also shown. 

Best thing is it's ending that some wishes are never ment to fulfill or the way we have choosen to fulfilled it matter. We need to understand everything because our wish can merely destroy everything. Ending is so intense that you can feel it. You can feel the heaviness in you heart. 

As Kiritsuga have a good intension but his way is not worth of his way, can't say more then it. You need to see it and find yourself. 

It's worth of you time. I personally recommend you.