Attack on Titan
進撃の巨人 (original)
Starring Yuki Kaji, Yui Ishikawa, Marina Inoue, Kisho Taniyama, Hiro Shimono, Yoshimasa Hosoya, Takehito Koyasu, Natsuki Hanae, Ayane Sakura
Watch "Attack on Titan" on Crunchy Roll released in 2013. It's a action & adventure and animation show, and has a rating of 9.1 out of 10 from Imdb which is very high for this kind of show, and is currently available to watch for free.