Attack on Titan or Shingeki no Kyojin is an anime/manga series that was made in 2009.Now in 2016 there are 20 volumes of attack on titan and still are to be made.This anime is based on a character named Eren Jaeger with his freind Armin and adopted sister Mikasa.Titans are human like creatures that eat humans without a reason to.All three of them join the military to fight the Titans after their home town is invaded and Eren's mother is eaten.Eren wants kill every titan because his mother was eaten by one but he doesn't know that he is a titan himself.This is an anime which is a japanese cartoon and a manga which is a japanese comic book but instead of reading left to right you read right to left! It is also a blood gore anime but I love the art style and structure.I advise you to have some knowledge of the anime/manga since this website might have spoilers ahead so be warned.
Here is the second and first openings of attack on titan!And my favorite song from Attack on Titan