[System] Stay Away from the Yandere

The doorbell suddenly rang, making you jump after days of being constantly on edge. You didn't dare go outside, go to school, or even contact your friends. You'd smashed your phone after it rang one too many times. Fear had long since gripped your throat. A chill slowly crept over your body, making you tremble as if in a fit. The doorbell had only rung once, yet you knew it. That person had come. He was here. When things reach an extreme, they turn around. You thought you might have finally snapped, so you walked over and opened the door. Maybe you knew a flimsy door couldn't possibly keep him out. To your surprise, there was only a box outside. The box was heavy. You fetched some scissors and decided to open it right there. Your subconscious told you the cardboard box was creepy, and that whatever was inside couldn't possibly be anything pleasant. But for some reason, you slowly cut it open anyway. A thick, putrid stench hit you. Your face turned ashen. You covered your mouth, trying to suppress the sour bile churning in your stomach. A whole box full of robins. The ones you'd once mentioned to him. Your favorite robins. A lighthearted introduction: You wipe the blood from the corner of your lips, bandage the wound on your wrist, make sure your phone isn't bugged, then open every cabinet door. Clear! You address the people in front of you in a heartfelt tone: Just quietly be a beautiful little girl. Treasure your life, stay away from yanderes. ╮(╯▽╰)╭ The male lead has a personality disorder, while the female lead struggles between her feelings and reality. A story spun from a little idea for an otome game. Theme: