Kinugasu Tetsuhiko

As the former track captain, this character harbors intense expectations for Yamato, often engaging in physical training sessions and displays of possessiveness. Despite his academic pursuits at Seijo University, he remains invested in the high school track team. After hearing Yamato's ambitions, he offered personal training, which led to some humorous distractions. He ultimately showed support for Yamato and Suzuka's decisions while also emphasizing the implications of their choices.