They may be real or fictitious.
Lots of people coming and going.
This is the story of one of them.
These stories once had a happy ending.
But now all the former protagonists have left.
The story comes from one person's memories.
They may be painful, sweet, warm, or tormenting.
They are not necessarily reality, but they are realistic.
Chapters with the same title are the same story. The protagonist of every story is him, or the broken kid, it's the same person. The supporting characters are the other half of the story.