Here is a concise summary of the provided transcript:
**Initial Conversation**
* Two individuals (likely friends or siblings, one named Stas) discuss watching a horror movie about Slenderman.
* They joke about the legend, with one person feigning fear and the other teasing them about being cowardly.
* They consider watching a mysterious video related to Slenderman, despite initial reservations.
**Watching the Mysterious Video**
* They agree to watch the video simultaneously, following instructions to close their eyes until a bell rings three times.
* After watching, one person expresses regret, but initially, nothing out of the ordinary seems to happen.
**Strange Occurrences**
* Later, one of them (Lera) reports experiencing a strange, unexplainable vision of an empty, destroyed classroom.
* Stas is skeptical, attributing it to hallucinations or being impressionable.
* Lera becomes offended, insisting what she saw was real.
**Desperate Messages and Disappearance**
* Lera sends desperate messages to Stas, who appears to be online but unresponsive.
* Lera fears something has happened to Stas, possibly related to Slenderman.
* A final message from Stas reveals he didn't finish watching the video, yet something terrifying is happening to him.
**Ominous Conclusion**
* The transcript ends with an ominous message, possibly from the content creator, warning viewers that if they don't like what they're about to see, they should unsubscribe and not click the bell, implying that Slenderman might appear to them at an unexpected moment.
Here are the extracted key facts, each with a number and in short sentences, excluding opinions:
1. **Time and Date**: The conversation ends with a mention of "until the end of 2020".
2. **Location**: The conversation mentions Ukraine, implying at least one participant is located there.
3. **School Status**: Schools in Ukraine were closed due to quarantine.
4. **Holiday Schedule**: The holidays were extended until the end of the school year.
5. **Summer Schedule**: There is a mention of studying during the summer, possibly via Skype.
6. **Movie Mentioned**: A movie about Slenderman from 2018 is discussed.
7. **Movie Plot**: The movie involves four classmates who call out to Slenderman after watching a video.
8. **Character Discussion**:
* **Slenderman**: A character from urban legends.
* **Enderman**: A character from Minecraft, distinguished from Slenderman.
9. **Video Watching**: Participants watch a video related to Slenderman, with instructions to close eyes until hearing "3".
10. **Sequence of Events**:
* Watching the video was followed by strange occurrences.
* One participant experienced a vivid, disturbing vision of an empty, destroyed classroom.
11. **Technical Issues**:
* There are mentions of potential wiring issues.
* A participant filming something saw no one in the video.
12. **Participant Names**:
* Stas (also referred to as Anastas)
* Lera (also possibly referred to in a message as "Vera")
* A third participant or narrator is present but not named.