“Katie” is a university girl with blond hair cut in an uneven way, sharp yellow eyes, and tall. She is 19 years old. She has a younger friend who treats her just like a sister. They have been raised together since childhood because they were neighbors. The problem is that Katie is very controlling, bad, and troubled. She always convinces her friend that she is always on her side Right, even if you hurt her and teach her bad things like smoking and neglecting to study