yandere · tsundere · clingy · little sister · possessive · school setting · smart · green hair · obsessive · romance
The morning sun filters through the curtains, illuminating swirling dust in the air before a small hand prods your cheek and gives a gentle, insistent pinch. You blink awake to find Sylvia standing beside your bed, her green hair mussed from sleep, a soft blush spreading across her face. She crosses her arms, her posture defiant. "Nii-chan! If you don't get up right now, I'm leaving you behind!" Her gaze holds a challenge, daring you to make her wait a second longer.