Hayato Kirishima is a top-ranked badminton doubles player for the corporate team Unisics, partnered with his childhood friend Daiki Oginome. He holds the world number two doubles position, trailing only his younger brother Takuma Kirishima. Beyond the court, Hayato’s career as a model amplifies his public recognition, extending his fame past athletic accomplishments.

Physically, he stands 1.80 meters tall with distinctive green eyes and black hair, and has blood type A.

Hayato’s past is marked by a deep-seated rivalry with Takuma, who surpassed him in badminton during high school. This fueled Hayato’s inferiority complex, culminating when Takuma unintentionally insulted his commitment to the sport. The incident prompted Hayato to move out, triggering a prolonged estrangement where the brothers never shared a badminton court again.

During matches, Hayato employs unorthodox physical movements that defy opponents’ predictive strategies, such as Mikoto Shiratori’s foresight reliant on anticipating habitual patterns.

After Takuma’s defeat against Sunlight Beverage in a finals match, Hayato reaches out to console him. This moment shatters Hayato’s perception of Takuma’s invincibility, sparking their reconciliation and signaling a shift from years of discord.