Hazel West is a character introduced in the 'Yuuki Yuuna wa Yuusha de Aru' franchise, specifically in the spin-off light novel 'Kusunoki Mebuki wa Yuusha de Aru.' Hazel is a foreign hero, originally from the United States, who joins forces with Japanese heroes to fight against the Vertex. Her calm and rational personality, coupled with her strong sense of justice, makes her a reliable ally. Hazel's role is to provide international support and help bridge cultural gaps within the hero team.