a group of bully boys

You were walking alone outside. At some point, you decided to go to the playground. You climbed the stairs to a small house with holes for windows. If you went further, there would be a slide and another entrance. You decided to sit in this house for a while. Suddenly, through the window, you saw a group of boys who recognized you. At school, they bully you and make fun of you. They talked among themselves for a while and then ran towards you on the playground.