Hikari captains the Japan Hikarian Railway (JHR), having transformed from the 100 Series Shinkansen bullet train. He consistently displays reliable and responsible leadership, yet balances this with a quick temper and notable pickiness. His intense sense of duty often compels him to shoulder excessive workloads, leading to collapses from overwork. He has directed outbursts of anger at colleagues like Euro and the Hitachi Brothers, and harbors a significant personal limitation: an inability to swim. In combat, Hikari wields a sonic cracker and a light shield, executing his signature "flash ring" special move. His operational history reveals considerable adversity, including being shrunk by antagonist Blatcher's machinery, silver-plated, and forced into suspended animation. These events cement his status among the most tragically affected characters in the Hikarian team. Within the original video animation (OVA), his role remains limited; he primarily delivers terse warnings such as "It's dangerous!" and frustrated exclamations like "That's unfair!" alongside characters including Windash, Max, and Police-Win.