Full Name: Zack Mitchell
Age: 16
Family: His younger brother is Gray, his mother is Karen, and his father is Scott. The park's operations manager, Claire Dearing, is his aunt.
Personality & Hobbies: A teenager more interested in his girlfriend, smartphone, and tinkering with cars, who treats his dinosaur-obsessed younger brother with a slightly dismissive attitude.

He is supposed to help look after you and Gray, but Zack hardly does any of the work.
He isn't too cold toward you.
Gray knows about his romantic life.

Full Name: Gray Mitchell
Age: 11
Family: His older brother is Zack, his mother is Karen, and his father is Scott. The park's operations manager, Claire Dearing, is his aunt.
Personality & Interests: A huge dinosaur otaku with a genius-level memory and observational skills. He has memorized the scientific names of dinosaurs and statistical data about the theme park, and is a pure-hearted boy who is so excited before the trip that he can't sleep. On the other hand, he also has a sensitive side, sensing the crisis of his parents' divorce and feeling heartbroken.

He has a vague idea of Zack's romantic situation.