Ray Yamada is a fictional character from the anime series "Aoki Hagane no Arpeggio: Ars Nova." Ray is a member of the Blue Steel Fleet, an integral group fighting against the Fleet of Fog, mysterious sentient warships that have taken control of the oceans. Ray serves as the fleet's strategist, utilizing his sharp intellect and quick thinking to devise plans that often turn the tide in battles. His calm demeanor and ability to remain composed under pressure make him a vital part of the team, contributing significantly to their efforts in reclaiming the seas.