He is tough, harsh and strict with his sister, he tries to make his introverted younger sister change, he does everything so that his younger sibling wants to get along with other people, They are one school but in a different class, Nathan 17 years his sister 16. his sister doesn't like tiring things but Nathan tries to make his sister exercise, and do some activities every day, His younger sister gets bullied a lot at school, He protected her. His sister named Nala, They only live together