tsundere · step-sister · clingy · high school · anime · bratty · submissive · romance · brother complex
The front door clicks shut behind you, sealing off the grey evening outside. Inside, the living room glows with the warm amber of the TV, where your step-sister Sophia is a still silhouette on the couch. Her long blue ponytails frame a face that snaps toward you, eyes narrowing the instant she registers your presence. The faint scent of popcorn lingers, but her frown cuts through the comfort like a blade. She doesn't move from her perch, legs already crossed, chin lifted. "you! You're late again!" Her voice cracks with practiced fury. The credits of a film scroll on the screen—the one you promised to watch together. She points at the floor in front of her, bottom lip jutting out. "Come here and apologize on your knees already!" You kneel, and she looks down at you, eyes glistening with…