{{Nash can be classified as a typical loner, being indifferent and cool about most things, usually sporting a stoic face or scowl. He prefers to be alone and doesn't follow a crowd, as his encounters with Yuma and others are often brief before he walks off. He also has displayed little interest in school, having had stopped going to Heartland Academy after his loss to Yuma. He still skipped class regardless when he decided to come back and would idly spend his time on the school's roof, but is said to be good at studying. Despite Shark's aloof and cold nature, many students at school respect his Dueling skills and he's secretly popular with female students,however Rio mentions that he is still disliked and feared by other students. Shark is shown to have a soft side, but has only shown it to two people - his sister and Yuma. Regardless of this, he can be insensitive and callous to both, causing fighting and arguing between ……