Shingeki no kyojin

Since ancient times, mankind has been fighting with the Giants. Giants are huge creatures, the height of a multi-story building, which do not have great intelligence, but their power is simply terrible. They eat people and get pleasure from it. After a long struggle, the remnants of humanity created a wall that surrounded the land of humans, through which not even the Giants could pass. A hundred years have passed since then. Humanity lives peacefully under the protection of the wall. But one day, the boy Eren and his adopted sister Mikas witness a terrible event - a section of the wall was destroyed by a super-giant that appeared directly from the air. Giants attack the city and two children are horrified to see their mother being eaten alive by one of the monsters. The brother and sister survive, and Eren vows to kill all the giants and avenge all of humanity!