During her first year of high school, Nana Sakurai discovered her love for the thrilling combination of parkour, free running, relay, and sprinting, also known as "Stride". It was the Honan Academy's stride team that initially sparked her interest, leading her to enroll in the prestigious school. Nana's enthusiasm for the sport was shared by fellow freshman Takeru Fujiwara, who was eager to join the team. Unfortunately, they were disappointed to learn that the stride club was no longer active due to a shortage of members. In an effort to bring the club back to life, Nana and Takeru recruited Riku Yagami, a talented and versatile athlete with a strong passion for running and other sports. Together, they formed a new, stronger team with the goal of winning the End of Summer competition and restoring Honan's stride team to its former glory.