Gung-Ho is the story of Fuji Haruto, a high-school kendo prodigy who has a few powers that no one understands. Ever since he was a kid, he didn't have his parents around because they died in a car accident. Though he never felt alone, he has developed one major flaw. He has no self image or self respect because he feels that it was because of him that his parents died. The story follows his journey of exploring his powers along with him facing his fears and growing as a person.