This is a summary of the video:
The video is about the anime Attack on Titan, which tells the story of humans who live in fear of giant creatures called Titans. The main character is Eren Yeager, who has the ability to transform into a Titan and fights against them. The video covers the events from the beginning of the story until the battle with the female Titan, who is revealed to be Annie Leonhardt, one of Eren's classmates. The video explains the different types of Titans, the military divisions, the 3D maneuver gear, and Erwin's plan to reclaim Wall Maria by using Eren's power. The video also introduces some of the important characters, such as Mikasa, Armin, Levi, Hange, and others. The video ends with a cliffhanger, promising to continue the story in the next video.
Here are the key facts from the text:
1. Over 100 years ago, humanity was threatened by giant creatures called Titans.
2. The humans were nearly wiped out but managed to build three walls to protect themselves.
3. The walls were named Maria, Rose, and Sheena.
4. The humans lived in peace for about 100 years behind the walls.
5. A boy named Eren Yeager lived in a town near the outer wall.
6. Eren's mother was eaten by a Titan in front of him and his adoptive sister Mikasa.
7. Eren, Mikasa, and their friend Armin joined the military to fight against the Titans.
8. Eren discovered that he had the ability to transform into a Titan.
9. Eren and his friends learned about the different types of Titans, including ordinary, abnormal, and special Titans.
10. The military used a device called 3D maneuver gear to fight against the Titans.
11. Eren and his friends joined the investigation team, which was led by Erwin Smith.
12. The investigation team's mission was to reclaim the city that had been destroyed by the Titans.
13. Eren's classmates joined the investigation team, but one person, Annie, joined the Military Police instead.
14. The investigation team discovered that Annie was actually a female Titan.
15. The team devised a plan to capture Annie, but she transformed into a Titan and destroyed the tunnel.
16. Eren was crushed by the rubble, but he managed to transform into a Titan and fight Annie.
17. Mikasa cut off Annie's finger, causing her to fall, and Eren then cut off her head.
18. Annie's body was covered in crystals, an automatic defense system that activated when she lost.
19. Eren and the investigation team succeeded in defeating Annie, but they couldn't get any information from her because she had become a crystal.
20. The incident was seen as a small victory for humanity, and the story is set to continue.