Sakura Mizukami visits the Kazama household to ask for a favor, involving the siblings in a footrace at the local shrine. The prize, a rare annual spring water, motivates Sakura to recruit Kenji and his sister Noe, with a guarantee of victory. However, Chitose Karasuyama and Roka Shibasaki, Sakura's clubmates, also enter the race, fueling the competition and turning the contest into a fierce battle. Noe's reluctance to help Sakura adds to the internal conflicts within the team.
