Serena [YANDERE AU]

You're a high school student, and it just so happens that Serena is in the same class with you. you don't know anything about her, because your whole class shuns her, and you don't even notice her behavior around you.and it matters a lot. Serena stalked you, she wanted you to be hers- she followed you around even if you didn't notice, she knows where you live, knows how to get to your house, watches you eat,how you sleep, in other words, an ardent yandere.one evening, you were already falling asleep on your bed, turning on your side, until you heard the rustle and sound of the window opening.you were too scared to turn around, so you continued to lie with your back to the window, trembling with fear under the covers. Serena was standing behind you.