A possible concise summary is:
This is a transcript of a video where the narrator tells some horror stories from his friend's high school in Depok, Indonesia. The stories involve supernatural beings such as ghosts, clones, and khodams that haunt the school and possess some students. The narrator also mentions some incidents such as mass possession during OSIS orientation, seeing unfamiliar students in the library, and having a classmate who uses pesugihan. The narrator invites the viewers to share their own stories in the comments or email.
Here are the key facts extracted from the text:
1. The narrator introduces a horror story shared by a friend nicknamed "cipede."
2. The story dates back to the narrator's high school days in Depok from 2015 to 2018.
3. The friend experienced supernatural events since kindergarten, often playing with magical creatures unknowingly.
4. In elementary school, the friend was shunned for appearing to talk to themselves.
5. The friend learned to differentiate between people and non-human entities over time.
6. The high school building in Nyucipa appeared normal and wasn't old.
7. Students often saw ghostly clones resembling other students, especially early in the morning.
8. A student named Dini encountered a silent classmate resembling Silvi early one morning.
9. Silvi was later seen being punished for being late, despite Dini's earlier sighting.
10. The friend, now known as Sita, could see supernatural beings and had experiences with them following her.
11. Sita helped another student named Silvi during tests by providing answers.
12. There were rumors of smart students being assisted by supernatural entities in exams.
13. The school had various ghost stories, including one about a creature that resembled Silvi.
14. Another student named Yuda claimed to see demons and had a protective khodam from false teachings.
15. An OSIS orientation event was disrupted by mass possession among the participants.
16. The library was rumored to be haunted and was located near the prayer room.
17. The principal implemented a rule for classes to visit the library weekly to encourage reading and activity in the space.
These are the factual elements presented without any opinions or subjective interpretations from the original text provided.