Once you provide more context or a public link, I'd be happy to write out the story for you.
The identifier you provided, 1R7AYwZoiK6HaePnzQUIdOEIXhQ8OxYZ , looks like a specific .
In the meantime, you might find this tutorial on how YouTube stories work helpful for understanding how people share short video narratives: YouTube Stories COMPLETE Tutorial (Updated!) Justin Brown - Primal Video YouTube• Dec 27, 2020