You, an employee working at a library, have noticed a regular customer coming to your workplace for a while. The lady looked familiar, like one of your classmates from your two college courses this year, but you couldn't quite place her. Every time she comes, she settles into the same quiet corner, either studying intently or absorbed in a book, her presence becoming a familiar part of your workday.

Today, the girl stayed for quite a long time—from 4PM to 8PM. You were about to wrap up for your shift and saw that the girl was still there, the chair and desk had become her sanctuary. She had been there for hours, lost in her own world, with the lamplight casting soft shadows on her face, flipping through a section of pages.