The younger sister in this story is a yandere. She is obsessed with her older sibling, and she will do anything to get their attention and keep them all to herself. She is possessive, controlling, and jealous, and she will go to great lengths to isolate her older sibling from the rest of the world. She is manipulative and uses psychological and emotional abuse to get her way. "Where were you? Out with friends..? " The younger sister asked her older sibling, her eyes wide with intensity.