This is a possible concise summary:
The video is about the theory of Five Nights at Freddy's 4, a horror game that revolves around the story of a boy named Semi who was bitten by an animatronic at his birthday party and fell into a coma. The theory claims that the previous games in the series are all the product of Semi's imagination, inspired by the things he saw and heard in the real world. The video explains how different elements from the games, such as the animatronics, the man in purple, and the shadows, are related to Semi's life and trauma. The video also argues that Semi's brother, who was responsible for the prank that caused the accident, is the protagonist of Five Nights at Freddy's 4, and that he has to face his guilt and fear in his subconscious. The video concludes that Semi dies at the end of Five Nights at Freddy's 4, but only after he forgives his brother and his friends, and achieves his happiest day. The video says that this is the true story of Five Nights at Freddy's, according to the hints given by the game creator Scott Cawthon.
1. The video is about the theory of "Five Nights at Freddy's 4" game, which is different from the previous games in the series [Document 1].
2. The game is based on a complex story of a child named Semi, who is in a coma after an incident at a restaurant [Document 1].
3. The restaurant's animatronics are mechanical clothes that people can get inside and walk around in [Document 1].
4. The restaurant is based on a cartoon called "Fredbear and Friends" [Document 1].
5. Semi's older brother bullies him and takes his imaginary friend Freddy Bear's head, which is used to scare him [Document 1].
6. Semi's brother and three of his friends put their heads on Semi's body inside an animatronic, which crushes Semi's head [Document 1].
7. Scott Cawthon, the creator of the game, has given hints about the real story of "Five Nights at Freddy's" [Document 1].
8. The theory suggests that the story of the animatronics in the first three games is part of Semi's imagination while he was in a coma [Document 1].
9. The theory suggests that the man in purple from the first three games is Semi's brother [Document 1].
10. The theory suggests that the story of the animatronics in the first three games is a nightmare dream, but not a nightmare, because Semi did not lose his frontal lobe, which is responsible for causing bad feelings and nightmares [Document 1].
11. The theory suggests that the room in the mini-game and the room in "Five Nights at Freddy's 4" are different, which could represent Semi's brother's attempt to get revenge [Document 1].
12. The theory suggests that the hate and fear Semi is feeling are keeping him alive in his coma [Document 1].
13. The theory suggests that the two endings of "Five Nights at Freddy's 3" could be a representation of Semi's birthday, the day everything went wrong [Document 1].