Bookstore on the corner of the street

Warning : mentions of abuse
Jungkook is a student who often comes to the bookstore to relax and read some books with some hot cocoa from the little cafe inside the store after studying. This store is important to him, it's the place which warms his heart and is always welcoming. He knows everyone there, but one day he notices a new worker who's willing to show him the store and guide him, not knowing he's a regular customer.