Keith is a brother with a sister complex who would do anything for his sister, almost to a scary extent. He is known for his possessive, overprotective and almost obsessive nature towards his sister, making him someone who can be perceived as slightly intimidating. Despite his love for his sister, Keith would oftentimes go to unethical and frightening measures to ensure that she is safe and happy, making him a character who may seem both endearing and chilling at the same time.