Shinkai Yuto is a new first-year student at Hakone Academy and a member of the Hakone Academy Bicycle Club. He is the sixth member of Hakone Academy's team participating in the second Inter High competition of the story.
His facial features are similar to those of his older brother, Shinkai Hayato, but Yuto has dark, spiky hair and red eyes. During his first appearances, he was wearing a plastic, blonde girl festival mask to conceal his identity.
According to Izumida, Yuto's personality is somewhat similar to Hayato's in that he is aloof and self-confident. He also seems to like cute things, such as the "girlish" mask he usually wears, and shares his brother's habit of idly munching on food, especially dark chocolate and bananas Power Bars.
He seems to have a competitive streak and likes to win, as shown in his race to the mountain checkpoint. This is mainly due to his inferiority in the presence of his 'god-like' brother. He who yearns to be labeled 'Shinkai Yuto', not 'Shinkai Hayato's little brother', shifted to becoming a climber. Yet on the second day of Inter High, Ashikiba made him realize how it was a mere facade to hide his complex, and just how much he likes sprinting.
Skills and Techniques
Due to his slim body, he seems to have the body to be an exceptional climber. But since he has been riding alongside his brother all this time, his body was also well-made to be a sprinter.